Overall I have been using Katalon studio for more than an year, I have been impressed with the advancements they have made in their product, it has certainly been a more favorable tool for our organization.
Pros:
It is very easy to use. Test cases can be made in very less time. offers a lot of other options apart from web UI testing like web service testing, desktop application testing etc.
Cons:
the only con is that they release new version every 15 days, it becomes a problem to stick with one version as there are many bug fixes and new feature update.
