I really liked this one. I've read Michaelides's other books, and I was a big fan in particular of The Silent Patient (don't read this one until you've read that one, by the way--there are spoilers for both the other books), so I was excited to see what this book would be like. It was not a disappointment--the characters were very well developed (if not very sympathetic), and the plot was good--I really liked the creative narrative device used for telling the story. It made the story a quick read, I got through the whole book at once! However, it was very different from The Silent Patient, and from what I've been seeing in other reviews, I think that could be why some people are not loving it. The ending was awesome, in my opinion. I didn't find the book overall to be slow, as some did, but I will say that the ending was easily the best part of the book. I love a book that ends in a memorable way. I think everyone should give this book a chance!