StresStimulus is a load testing tool for websites, mobile and Enterprise apps. It determines the web performance and scalability of your application under the rigors of heavy traffic load. Hundreds or thousands of physical users are realistically emulated through on-premise load generators or in a cloud testing environment
They are very transparent in terms of price. Installation, as mentioned previously, is very easy. The testers themselves could do it.
Pricing plans are dependent on number of licences and virtual users required for testing.
The setup cost is very competitive and easy. Pricing/licensing options are very flexible to adapt to test requirements/needs.