I was not able to update anything anymore due to some complex dependency problem that could not be resolved and seemed to be circular. This happened twice with

I was not able to update anything anymore due to some complex dependency problem that could not be resolved and seemed to be circular. This happened twice with Ubuntu and another debian-based distro. Granted, I admit I mess around a bit with debian sources. I sometimes pin things, and often times pull packages from sid or unoffficial repos to get fresher versions. With arch though, packages are always fresh, and the AUR has always worked well for me when I needed something not in the official repo. No issue so far.