This is the go to tool for all the web service testing needs. You can do functional testing, regression testing, automate the testing and drive the data from external sources like a Excel spread sheet or an xml document and finally performance testing. It can get better in scenarios where the response is to be compared with UI, with more automation. The license cost needs to be considered when there are many open source tools out there in the market.
The tool is built in such a way that you need minimum to no experience in API testing and you can start using it from day 1. It's that easy. And many features like configuring many end points and choosing the one [on] which you want the tests to be run, easy import of wsdl, etc. are very helpful.
Characterizing the tests and driving the data from external sources like Excel or xml document is easy and very powerful to automate tests. Many assertions are very well built in.
Automating the APIs using this tool is very efficient and easy. It also offers some UI level automation embedded in it so it makes life lot easier to compare the response vs UI.
Performance testing of APIs is also built in and so it makes a one stop solution for all testing needs for API.
It has been of tremendous help as the ONE STOP TOOL to test the APIs end to end. Ease of use is great and their support staff is excellent. They always conduct brown bag sessions for us to learn about new features. Overall it has given us a great ROI considering how fast we can test and deliver to market.
