Four stars, because none of my qualms are fatal (only a bit frustrating) and I was kept reading until the end. This is so tightly plotted that -- for me – there were few surprises plot-wise, but also very little plot. Our two MCs are kept apart for the majority of the book, which progresses through months-long time jumps, leeching the story of urgency and emotion in my opinion. I also didn't connect with the writing style; it kept me at a distance and prevented me from really experiencing the story “up close” through the characters' eyes. There is one POV in particular that makes the book feel more YA (because the character is 15). In fact, I could see this being recommended to teen readers. It has some intense themes and deep discussions, but the prose is overall chaste and the romance light and positive with diverse representation throughout.