I couldn't play the majority of games that I wanted to with having to use Emulation (Cross Over), the windows don't maximize all the way, everything is so restricted unless you hack your main .KEXTs and whatnot and that's extremely dangerous, iTunes isn't necessarily my most preferred way of playing music, the updates usually require 1 GB of memory, I couldn't add more memory with the system getting confused, Bonjour didn't like my printer...There's more I know it's just that it's 12 AM and I'm about to pass out. :-\