The time travelers wife movie as good as book?

Okay i know the movies aren't the books but I just read it and i absolutely loved the book and am so excited for the movie. I'm just kinda wary about it because of the trailer. Ugh I just really hope it pretty much follows the book which will be pretty difficult considering the length and it switches ages a lot. Idk. Whatare your opinions?? has anyone heard if its faithful to the book or disappointing?