I saw it for the second time on Wed. I liked a lot more than I did the first time I saw it in the theater. The differences from the book were a lot less jarring, I suspect because I knew they were there. Still, they didn't seem to take up nearly as much of the movie as I recalled.
I enjoyed it. Oh, Gollum definately speaks in an odd voice, but it is understandable.
The Two Towers is supposed to be the biggest deviation from the books. They say The Return of the King is going to be the best of the three, We shall see in Dec.