Right now I am using SQL Developer to install a database, and I use it as a client tool.
Oracle is tremendous. I have always said to everybody, without knowing other databases, that Oracle is the best database that can exist in this world. That's for sure. Everybody is considering cost, mainly, so I've heard many stories recently of migrating to PostgreSQL, for example, because it's open-source and many small customers don't need all the super advanced features of Oracle, which costs a lot of money.
But on the other side, a great feature of Oracle, I think, is that it allows me to download the database and use it at home. Not a demo database or something restricted but the full version. That's fantastic.
I tried using SQL Developer once, when I was still working as an employee, using one of the older versions. It worked nicely, and I liked that I didn't need an installation, it was very convenient. But after many years, when I tried to use it again, against the more advanced Oracle Database, it did not work. Something in the Java was not compatible. I would have had to install it again, and I didn't do so.
But now I am properly studying the issue of installing a database of my own, versus installing a virtual box with an Oracle appliance inside. I will have to see which one works best for me because each one has pros and cons. I am not a DBA. So if I get involved in an installation problem, I don't know how to get out of it.
Personally, I always prefer to use a product from Oracle. First of all, this one is free. And second, it is not so complicated. In another company, for example, the strategic development tool was Toad. And they have even joined Toad with a version manager, the specific version manager, and everybody had to work with Toad. I did not like Toad. So I occasionally worked with SQL Developer, but mostly I worked without any development tool, just writing in an editor, in Notepad. So I developed my entire career, practically, in Notepad.
I think it's a good product in the sense that it does not overwhelm you with many features. So I would give it a 10 out of 10.
I would recommend it.