I saw it in 3D, but not sure if the Imax 3D vs 3D would be that different. Some people say its not that different. However I plan to re-watch it in 3D.

Only movies made for IMAX look good on IMAX. I remember watching Matrix 2 on IMAX which was a treat. However Dark Night was just dissapointing since only a handful of scenes were in IMAX.

I think after Matrix 1, this move takes visual effects to a whole new level.

If you are NOT into visual effects and sci-fi, then this movie will be average, because the storyline is average and been seen many times before e.g. Dances with the wolves.