The community is amazing. The forums are a wealth of information, and I've tracked down almost every single bug just by searching. The wiki is updated regularly and is just as rich.

In my experience Arch users are very happy and proud to be running such a powerful, flexible system, and they give back by helping others. I ran Slackware for a year, then messed around with Mint before trying Arch. I can't see myself trying anything else -- except maybe LFS ;).