We've closed around 95% of all issues filed for Construct 3 - well over 1000 reports. We have thousands of happy users who use it daily. Can you point to any specific issues that are giving you trouble?
Not right now as Ive been out of country, but no doubt when I use it this weekend I will have issues if the last 3x are anything to go by: build server, adMob ads plugin etc.
Alternatively, just go read others recent posts - you'll find something.
Update: I saved you the time, here's one -