I think fans of the book will be pleased with this movie, because being an avid reader myself, i'm very critical of book-to-screen films, and I enjoyed it.
On the other hand though, this movie drags a bit. During the middle of the film as they wander around the woods, there's an awful lot of time when they're not doing or accomplishing anything. After seeing it once, it's easy to get bored or have your mind wander.
Overall, I think this movie was the best so far in terms of staying true to the original story, and I would definitely recommend seeing it to anyone that hasn't.