From my experience, at most that can go wrong is the update fails or similar non-fatal issue may arise. I haven't been using Arch for very long (not more than a

From my experience, at most that can go wrong is the update fails or similar non-fatal issue may arise. I haven't been using Arch for very long (not more than a year), but I never had any issues that would break the system. As you already mentioned, they post the the necessary info on the website and even now after the pacman database format upgrade when pacman fails it specifically tells you to run a command to fix this. Oh and don't forget the massive wiki, that one's a killer. Plus I really like this whole rolling release philosophy with up-to-date packages :)