The game installs perfectly through steam, and appears to be running really smooth as far as I have played. And it's just the game to play on your macbook while waiting. :)
There is just one small problem with the graphics: the animated characters are somewhat faded, and sometimes disappear completely (only to reappear soon thereafter). As this is a puzzle game, this "bug" really doesn't affect game play. I'll be happy to provide screenshots and help any way I can to make this work :)