The software is very flexible, easy to use for non-programmers as well! It's also good that you can test your application with different browsers/OS versions at once without any problem.
Also it has some nice features like automated tests recording which are not available in other products but I would definitely recommend this product because of its flexibility. Maybe there should be more options when choosing between testing tools? Yes - we're using it now while developing our mobile app so far everything was ok since no bugs found yet (but still working). We started creating an MVP during last week by implementing functionalities from scratch within few days only via React Native platform.