It's hard to write of Gravity without introducing spoilers, but I'll give it a summarized shot.

The images are stunning. The local theater is only showing 3D; that may be the only choice. I'm not a glasses fan, but the 3D is done very well. The sets are also very nicely done.

There are a lot of places where it is quite difficult to suspend disbelief on some of the technical points. Gravity is not accurate in the physics sense (from what I read) and a few other places, but to discuss them is to give away things. Just accept Gravity as a suspenseful movie chock full of memorable images.