This post will contain spoilers for the book and the movie. I generally do not do big spoilers, but the novel and the movie relies heavily on twists.
Overall, while the book and movie were not perfect in terms of storytelling, they were still engaging and interesting. I think there is a lot of commentary on the media and bad romantic relationships in general. I would not necessarily recommend either of them to everyone though I think lots of people would enjoy it or find it interesting.