It does work. I have that set up and have tried the monitor with a GTX 550 TI, a GTX 580 and a GTX 680. In 720P it worked with all content I tried.
In 1080P it seemed to work for some content and not for others with no reason I could detect.
In terms of quality, it worked as well as it did for the playstation 3. In my opinion, no much better or worse than any other 3D monitor I've used. None seem that great because they are too small to be really engaging despite the advertizing.
My advice for anyone looking for a great 3D experience for gaming would be to get one of those Optoma 3D gaming projectors for $800 new or $400 used.
If money is no object, get 3 and a curved screen.