Problems with games running through steam

I'm a relative newbie to Steam on the Mac, but I've noticed some subtle bugs in games, particularly with regards to fullscreen apps not being able to be quit on occasion. Steam is great in theory, but as a practical matter has mixed results on a secondary platform. Sorry that I don't have any specific advice here. While Steam is a decent platform on Windows, I'm not sure there's a great solution other than looking for Mac-specific reviews and seeing if there's any common issues that people are experiencing.

Hopefully with the App store getting more and more important, devs will be compelled to make cross-platform apps work better on Macs. The situation is much better today than it was a few years ago, at least.