Haven't read any reviews yet or any of this thread, but I just came back from seeing it and I wanted to post my thoughts. The movie is basically Dances With Wolves on the Solaris planet. Its good, but not great. Its very predictable, but I am not sure that really detracts from the experience. It took a bit for me to get used to the 3D, but I would wager seeing it presented normally would not do the film justice. I am not sure the special effects would work as well if not for the 3D. Speaking of the special effects, I was impressed by the magnitude of the effects but not the quality. CGI characters and locations look no better than they did a decade ago when Phantom Menace came out. They can just do more of them. I am sure this will get the kind of undeserved Oscar attention The Lord of the Rings trilogy did (hopefully the Academy won't make the same stupid mistake twice).
So anyway, its a good movie, but not great. I expected more from a movie that spent so much time in development.
edit: 3 out of 5 Stars.