I must admit that this one definitely felt a little similar to book #2. I think I understand where people are coming from where they feel like Hazelwood uses a blueprint for a lot of her books. Granted, this still has it's charming moments and as someone who's not into science or math, I find those specific elements to be intriguing. However, her characters could use more personality. They feel like carbon copies of each other with name changes. It'll be interesting once I transition into reading her longer books.