Yes, Blizzard is pretty good. Patch 1.5.0 was a huge thing, major architectural change. While it was frustrating that it took a week and their tech support was brutally biased towards Windows, they got it done.
I've been running starcraft 2 on my MBP since the day I got it.
Can't go crazy with video effects, the way I can on my desktop, which has a gaming video card. But I get enough fancy video to keep me happy.
I'm bronze level, somewhere in the 20 to 30 rank. I'm always up for a game. PM me for my blizzard id.