Saw Gravitiy today. It was a pretty great experience. I don't want to say 'movie' because it felt like more of a ride than a movie. I'm glad I saw it in 3D because you don't get the full experience otherwise. But is it something I'd watch over and over again? Probably not.
The visuals were mind-blowing. I flinched several times during one particular scene. You all know the one. Amazing use of 3D and definitely worth the 3D price. Sandra Bullock was also pretty great, and necessarily so.