I read this book with a mixed heart.
I loved "Morgenstern's" parts of the novel- witty and snarky, I was laughing a lot and quoting choice parts to my family.
What detracted from the enjoyment was Goldman's comments in the first 35 pages and I didn't even read "Buttercup's Baby" segment. The misogyny, fat-shaming, and one homophobic comment (fearing that his son will turn into a pouf) was really grating to read- I had so much second hand embarrassment, that it was kind of amusing how bitter he sounded.
I hate to pick which was better, the movie had a lot of Goldman's commentary out of it (the first 35! pages), which was a good choice, but you had more back-story in the book. I guess that will have to be your choice, fellow fans. :D