Me and my girlfriend went to see it in IMAX 3D last week.
We were looking forward to it a lot, and had booked tickets a few weeks beforehand.
We both LOVED the film very much.
It's just a fun, exciting movie. A great visual experience and the 3D just adds a layer of perception, it helps immerse you in the action.
It's one good example of what going to the cinema is all about - dipping into another world and leaving disbelief at the door. Allowing your imagination to fire and be stimulated by someone else's visual creativity.
Having read other comments around the net, I don't really understand why people complain about dialogue being awful in this (and many other movies these days), or how a storyline is lacking - I guess they're just easy criticisms to throw at something people can't find alternative merit in.
The soundtrack was wonderful!
And the coolness of some scenes, such as the club scene: awesome.