As some others have said, seeing this in IMAX 3D is the way to go. The movie is a visual treat, not just for the things you see, but for how it pulls you into the story. The vision the movie-makers had for the visuals is spectacular.
Although the story is familiar (think 60% Dances With Wolves, 10% The Matrix, 5% Starship Troopers, 5% Star Wars, and 20% new/creative story), the story is interesting to watch and entertaining.
Overall, a great movie. One of the best SCI FI movie-watching experiences I've had in many years.