I enjoyed the movie very much, but I do feel like it should have been stretched out a little. I felt like I sat down to the opening credits and was walking out during the ending credits 20 minutes later. I appreciated the CGI for the wolves and the transitions of the actors into the wolves. It was very smooth and, having read the books, the wolves were exactly how I pictured them.
I also enjoyed the comedy aspects of it. I laughed so much during the book and it didn't seem like the director would be able to incorporate that, but he did very well.