DevAssure O2 has been a lifesaver for our team. It basically eliminates the CI wait time—rather than sitting through a 45-minute full suite for a tiny fix, we get results in minutes because it only runs the tests tied to what we actually changed. I used to spend half my week repairing broken scripts for the junior devs whenever the UI tweaked a class name, but now the tool takes care of that automatically. It also lets everyone write tests in plain English, so we can ship without me having to babysit the whole process. Review collected by and hosted on G2.com.