I can't really tell you which parts of it you'll like, and which parts of it you won't like. I liked the whole thing -pizzicato strings of zooming particularly, as well as the musical number at the beginning. I didn't mind that it got into parts of the other books - there could still be another movie at this rate.
Let me sum up - if you still haven't seen it, I need to take you. There. Good Enough for Me™.