Some of the images of games in the preview slideshow looked kind of like... Okay, this looks like Viewmaster-level stuff. But WoW really looked incredible! You can also tweak the effect a bit, but I didn't try that out yet. It's already getting me more excited about the game, especially the prospect of trying out the new Cataclysm expansion due later this year.
There's a big list of games that work with this stereo 3D, but I doubt I have any of them besides WoW, ahaha. So for me it's kinda limited at the moment, but I can't wait until there are more movies and games that can take advantage of it. It's really fun!