I read the book when I heard the movie was coming out. I enjoyed the book, especially the quirky characters. I was concerned that some of the parts of the book would be overdone in the movie. I was pleasantly surprised. The movie followed the book very well. There were a couple of parts from the book that weren’t in the movie. It was probably better, since they were minor things and leaving them out didn’t take anything from the original story. In retrospect, they didn’t need to be in the book at all.
The movie was well cast. No one seemed to be trying to make her character bigger than she was, and no one made her character ridiculous.
Bottom line, I enjoyed the movie just as much as the book. I was very happy with it.