I think it was a really good adaptation of the book. The changes in some of the scenes could've been the way Stephanie wrote it, and I was happy the way some scenes were put together into one scene. Totally worked, and all of my favorite scenes from the book were incorperated.
I think the wolves were more real, not quite as animated in movement and sound and the way their fur moved...things like that.
As usual, the cast carried off their parts well, especially transitioning into the more comfortable way they would have with each other as they are becoming permanent parts of each others lives.
I guess the best thing I could say: I went to the movie with a friend who previously wasn't into the saga and just went to keep me company. She watched Twilight and New Moon to get up to speed on the storyline and was still pretty non-committal. She left this movie saying it was really good, and than she thinks she's going to have to read Breaking Dawn now, because she can't wait till next year to find out what happens!