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reviewer1850925 - PeerSpot reviewer
Associate at a financial services firm with 1,001-5,000 employees
Real User
Collaboration and communication solution used for internal messaging between employees
Pros and Cons
  • "Slack is a really easy collaboration tool to use and many companies are adopting this popular tool."
  • "The way groups are created on slack could be improved. Once you create a group of people, you can't add additional people unless you convert it to a channel."

What is our primary use case?

Slack is our main source of collaboration and we use it for all internal messages.

What needs improvement?

The way groups are created on slack could be improved. Once you create a group of people, you can't add additional people unless you convert it to a channel.

For how long have I used the solution?

I have used Slack for one year. 

What do I think about the stability of the solution?

This is a stable solution. 

Buyer's Guide
Slack
March 2025
Learn what your peers think about Slack. Get advice and tips from experienced pros sharing their opinions. Updated: March 2025.
842,592 professionals have used our research since 2012.

What do I think about the scalability of the solution?

This is a scalable solution. 

How was the initial setup?

The initial setup is straightforward. 

What other advice do I have?

Slack is a really easy collaboration tool to use and many companies are adopting this popular tool. 

I would rate this solution a nine out of ten. 

Which deployment model are you using for this solution?

Public Cloud

If public cloud, private cloud, or hybrid cloud, which cloud provider do you use?

Disclosure: I am a real user, and this review is based on my own experience and opinions.
PeerSpot user
Patrick Scolyer-Gray - PeerSpot reviewer
Founder & CEO at Pathbreaker Pty Ltd
Real User
Top 10
A clean and efficient communications platform that is good for large teams
Pros and Cons
  • "With respect to being a clean and efficient communications platform, I think that it does the job quite well."
  • "I have found it cumbersome to create and set up groups, or channels."

What is our primary use case?

I use Slack primarily for communications. This includes communicating with individuals as well as grouping people into cells to work on specific parts of a project. We don't use the features beyond just the basic communicative side of it.

What is most valuable?

With respect to being a clean and efficient communications platform, I think that it does the job quite well.

It's very good for when you have a large number of people working within the team. It can be a challenge to ensure that people are working within the bounds of the project that they are assigned to, and Slack is effective for ensuring that happens.

What needs improvement?

I have found it cumbersome to create and set up groups, or channels. I recall having to go through the application, then back to the web site, and then back to the application. I didn't really like that and this is something in the interface that should be improved. If it were possible or easier to create those working groups within the application, without being taken into a browser and working entirely within the software itself, that would be ideal.

I would like to see integration with collaborative tools, such as word processing software or programming environments and coding software, made clear, easy, and as broad as possible. It should handle simple products, all the way to complex ones. It should be easily embeddable inside a channel so that anyone can use it.

I think that changing the privileges to remove restrictions would help the users to adapt to the platform more easily, removing bottlenecks. Having to request access for particular users is time-consuming and it would be better if more people can do these things themselves.

For how long have I used the solution?

I have been using slack since the beginning of 2019.

What do I think about the stability of the solution?

I have not noticed any bugs, glitches, or other issues with stability.

What do I think about the scalability of the solution?

We have between 30 and 50 users.

Which solution did I use previously and why did I switch?

A lot of the work that we're doing now ends up on Microsoft Teams. Whether I like it or not, it tends to marginalize and eventually push Slack out of the picture.

How was the initial setup?

I found the initial setup to be straightforward. You can also bombard people with reminder messages that they should be joining a channel or discussion. In fact, I've had less trouble with slack than I've had with Teams.

What other advice do I have?

From my perspective, this is a good product and I definitely recommend it. My advice for anybody who is implementing this type of product is to first consider what it is that they want to achieve, and then make the decision about which product to implement based on that. If you're trying to pick between platforms, like Teams versus Slack, I would recommend Slack for a variety of reasons. Even if you are using Teams already, I would suggest using Slack in addition because you can't go wrong.

I would rate this solution an eight out of ten.

Disclosure: I am a real user, and this review is based on my own experience and opinions.
PeerSpot user
Mogle - PeerSpot reviewer
MogleSenior BMC Remedy Consultant at Mogle & Partners Limited
Consultant

I am really impressed with Slack, it quickly helps to organise different teams and collaboration across different projects and clients. 

Buyer's Guide
Slack
March 2025
Learn what your peers think about Slack. Get advice and tips from experienced pros sharing their opinions. Updated: March 2025.
842,592 professionals have used our research since 2012.
PeerSpot user
Consultant at a energy/utilities company with 1,001-5,000 employees
Consultant
Some of the valuable features are managing notifications, status updates, and reminders.

What is most valuable?

  • Managing notifications
  • Status updates
  • Reminders
  • Selective involvement in conversations with relevant threads when they are of value
  • Avoidance of email clutter
  • Bots which enable focused streams of information available in one place for the relevant, interested people
  • All kind of integrations: File sharing services, application performance management, incidents and monitoring alerts, which are flexible and easy to develop through an API
  • A powerful search through chat history to find references and pieces of information promptly
  • Recent threaded comments feature

How has it helped my organization?

  • Increased productivity avoiding email "chat" and creating space for focused conversations which are topic or action oriented
  • Increased visibility and "situational awareness" of people in the team at their own pace (asynchronous), avoiding interruptions
  • Increased serendipitous communication and shared thoughts on general channels.

What needs improvement?

Better ways to help people get up to date when away from a conversation for a long time, or after bursts of a particular discussion.

Slack has different features to follow up on updates when not directly through notifications.

You can use Show Activity to see where you have been mentioned recently.

You can mark items with Stars to follow topics in a kind-of to-do list. And even if you have a granular control on mobile push and email notifications, when you have been away for sometime, or visit the channel from time to time, and there are channels with a lot of activity, you can have some difficulties to go through the new messages since, without risking to confuse important from non-important conversations.

Recent threaded messages help people center around topics, but still where there's people that come to the channel from time to time, they can feel overwhelmed to go through everything since last time.

Some summary feature can help target most heat or important messages or conversations, or some kind of view of the recent messages by "heat" level (kind of the sorting algorithm of Facebook or LinkedIn for the news feeds).

For how long have I used the solution?

We have been using the solution for one year.

What do I think about the stability of the solution?

We have not encountered any stability issues. It is a very simple, effective, and stable solution.

What do I think about the scalability of the solution?

We have not encountered any scalability issues.

How are customer service and technical support?

We never required the technical support.

Which solution did I use previously and why did I switch?

  • Email
  • Mailing lists
  • Forums
  • Internet relay chat
  • Wikis

In the cases where it fits best with the team, Slack can be a replacement and enhancement to collaboration, increased productivity, and reduced clutter in email.

How was the initial setup?

The setup is very easy. I was responsible for implementing it. It required a low level of expertise to deploy and administer. It required a medium level to manage integrations and to develop integration over other software towards Slack through its API.

Which other solutions did I evaluate?

We evaluated HipChat and Yammer.

Microsoft Teams was not out yet, which may suit companies with a Microsoft toolset.

Facebook Workplace wasn't yet available.

Interestingly enough, Slack is even more friendly in all platforms including a native Linux client, and has an excellent browser based version.

What other advice do I have?

Consider the resistance to text based communication of people not used to it and those with a fear of transparent communication who are worried about the saturation of technologies.

Some gamified training can help and advocate in order to guide, moderate, and curate the channels, set some "netiquette", and encourage use and constructive behaviors.

People are getting used more and more used to text based communication through Whatsapp and other apps.

Consider that it has a strong community across the world and that is a powerful source to leverage.

This product is so flexible and powerful that it can be used as:

  • Virtual space for teams
  • Topic or action based rooms
  • A bot answered service channel
  • A back channel for events
  • A lot other use cases depending on team appetite and creativity

Certainly within the right culture, it will enhance and reduce friction in communication.

Disclosure: I am a real user, and this review is based on my own experience and opinions.
PeerSpot user
reviewer2220822 - PeerSpot reviewer
PhD Researcher and Data Scientist at a healthcare company with 1,001-5,000 employees
Real User
Helps to communicate with teams and share links
Pros and Cons
  • "I like Slack's notifications. It is more user-friendly and pleasing than Teams."
  • "The tool is a bit slow."

What is our primary use case?

We use the tool to communicate with the design team, and exchange links, and code needs. I use it for collaborating with outside spaces. 

What is most valuable?

I like Slack's notifications. It is more user-friendly and pleasing than Teams. 

What needs improvement?

The tool is a bit slow. 

For how long have I used the solution?

I have been using the product for six years. 

What do I think about the stability of the solution?

The product is a bit slow but stable. 

What do I think about the scalability of the solution?

Slack is scalable. 

Which solution did I use previously and why did I switch?

Teams is a Microsoft product and not free. You have to buy a 365 account and everyone cannot do that. Slack has a facility to avail free accounts. 

How was the initial setup?

Slack's setup is easy. The product does not require any maintenance. 

What's my experience with pricing, setup cost, and licensing?

There are no licensing costs associated with the solution. 

What other advice do I have?

I would rate Slack a five out of ten. 

Disclosure: I am a real user, and this review is based on my own experience and opinions.
PeerSpot user
reviewer1420620 - PeerSpot reviewer
Product Development Manager at a tech services company with 11-50 employees
Real User
Top 5
The product enables efficient communication and collaboration, but it crashes when used on the desktop
Pros and Cons
  • "Slack provides very fast communication."
  • "The product crashes when I use it on the desktop."

What is our primary use case?

We use the product in the office for communication. It's our main channel for any communication.

What is most valuable?

Slack provides very fast communication. The communication is sent directly to me, so I do not miss out on anything. The product provides various channels to communicate. A channel is like a team, where all communication regarding a team is sent. The product gives the flexibility of having many channels. Communication is isolated and sent to the right person at the right time. Slack has a voice messaging feature.

What needs improvement?

The product crashes when I use it on the desktop. The product must improve user experience. It would be quite interesting if Slack works with Microsoft Teams.

For how long have I used the solution?

I have been using the solution for six years.

What do I think about the stability of the solution?

The product crashes sometimes. I've never understood what the problem is. It happens intermittently. I don't know what really makes it crash, but it happens once in a very long time.

What do I think about the scalability of the solution?

The solution is scalable. We are a huge team. We’re about 40 people. All of us use it seamlessly. It achieves our objective as a small team.

Which solution did I use previously and why did I switch?

In 2006, we used IP Messenger. It worked the same way but could be used only in the office. We didn't have any visibility of the communication outside the office. It did not have channels. It had many drawbacks, and Slack solved a lot of those problems.

How was the initial setup?

The solution is quite easy to set up. Anyone can easily set up the product, whether senior employees, junior employees, or professionals.

What other advice do I have?

I use Slack on my desktop. I have it on my phone too. All communications reach me as soon as they are sent, whether I’m in the office or outside. I don't look at the product for improvement. I appreciate what the product is doing. I'm not an administrator. I am a typical user. I joined the Slack channel because I was invited. I have access to Slack as a user, not as an administrator. I used IP Messenger as a software developer for a medium-sized organization in Kenya. We could share files. We could send text messages and all of it. We couldn’t use IP Messenger outside the office. It did not have channels. 

For people who need constant communication and don’t want to rely on emails, Slack is the right tool for them. We can work on the mobile phone to communicate on the go. As long as we have internet connectivity, it is secure. We can create as many channels as we like and collaborate. We can also do voice calls and send voice notes. Overall, I rate the product a seven out of ten.

Disclosure: I am a real user, and this review is based on my own experience and opinions.
PeerSpot user
Full-Stack Python Developer at Optisol
Real User
Top 5
Great for thread based communication, but sometimes logging in can be difficult
Pros and Cons
  • "We use thread-based communication. So that if a new person comes to look into a problem for a particular task, they can easily go and look into the particular thread it is discussed in."
  • "Sometimes there are login issues."

What is our primary use case?

We use it with our clients for sharing files and for communication.

How has it helped my organization?


What is most valuable?

We use thread-based communication. So that if a new person comes to look into a problem for a particular task, they can easily go and look into the particular thread it is discussed in.

We also send/download multiple files at a time.

It's also helpful that we can do group and individual calls on Slack.

There is a great search functionality.

What needs improvement?

 Sometimes there are login issues.

For how long have I used the solution?

I have experience using Slack. 

What do I think about the stability of the solution?

It is stable. 

What do I think about the scalability of the solution?

Slack is east to scale.

What's my experience with pricing, setup cost, and licensing?

It is an affordable solution. 

What other advice do I have?

Overall, I rate the solution a six out of ten. 

Disclosure: I am a real user, and this review is based on my own experience and opinions.
PeerSpot user
Project Manager at Sparklehaze
Real User
Top 20
Helps to create groups, share documents, and communicate
Pros and Cons
  • "The solution makes it easy to create groups, share documents, and communicate."
  • "Slack feels clustered and hence it should improve its design and UI."

What is most valuable?

The solution makes it easy to create groups, share documents, and communicate. 

What needs improvement?

Slack feels clustered and hence it should improve its design and UI. 

For how long have I used the solution?

I have been working with the solution for six months. 

What do I think about the stability of the solution?

Slack is stable. 

What do I think about the scalability of the solution?

I would rate the solution's scalability an eight out of ten. My company has 30 users for Slack and we plan to increase the usage in the future. 

How was the initial setup?

Slack's setup is easy and takes only a few minutes to complete. 

What's my experience with pricing, setup cost, and licensing?

I would rate the tool's pricing a four out of ten. 

What other advice do I have?

I would rate Slack an eight out of ten. I recommend the solution since it covers all the basic needs. 

Which deployment model are you using for this solution?

Hybrid Cloud
Disclosure: I am a real user, and this review is based on my own experience and opinions.
PeerSpot user
reviewer2225250 - PeerSpot reviewer
Senior BA at a financial services firm with 11-50 employees
Real User
Top 10Leaderboard
Easy-to-use and intuitive collaboration tool
Pros and Cons
  • "The solution is scalable."
  • "Its capabilities to provide security features could be better for corporations."

What is our primary use case?

We use the solution for communication within our internal teams and with external organizations.

What is most valuable?

The solution is intuitive, easy to use, and has many essential features. Also, the notifications features for its mobile version work the best. In addition, we can set it up as per our preferences, which is helpful and advanced.

What needs improvement?

The solution's capabilities to provide security features for corporations could be better. Along with it, the mobile version's calls and sharing video features could be faster.

For how long have I used the solution?

We have been using the solution for more than four years.

What do I think about the stability of the solution?

The solution's stability for the mobile version could be better as it freezes sometimes. At the same time, it works fine for the desktop version.

What do I think about the scalability of the solution?

The solution is scalable. We have 150 users in our organization.

What other advice do I have?

It is a good collaboration tool. It makes communication within our organization easier. Our Administrators can also lock down the channels for exchanging messages and use them as an announcement tool.

I rate it an eight out of ten.

Disclosure: I am a real user, and this review is based on my own experience and opinions.
PeerSpot user
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Updated: March 2025
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