I'm considering installing it for a dualboot with osx, so is it buggy or anything? 
Does Arch-Linux work well on a macbook pro?
arch linux;macintosh
There are quite a few Macbook users in the Arch community. There is good documentation on the Arch wiki about installation, and a few threads in the forums describing issues and fixes.Macbook on the Arch WikiPage with detail on the aluminium model