I really enjoyed this book. I read it in nearly one go. It wasn't a standard 'whodunit', if it even really can be classified as that. There was not as much suspense compared to other novels in this genre. But the characters were a lot more gripping than in other novels. Especially Rachel. Some readers might hate her, but I adored her. 
 The first character that starts of the story, Rachel, is just a mess. She drinks a lot -trust me a loooot-, lies and constantly does strange things. Things where you as a reader think to yourself: 'no, Rachel, don't!..". I loved the character of Rachel. Although she isn't honest to the other characters, she is honest to the reader. I found it really refreshing and sometimes even amusing when she says something but she is thinking the complete opposite. 
 In the beginning I was a bit worried about the diary style that the book seems to be composed of. But the further you go, the more it is just a switch of perspectives between different persons and clearly not a diary. Also, when a day is described by multiple characters from their point of view, it really adds something and it is not just a boring repetition. 
 At some point I did see it coming, how the story would probably end. But it was still entertaining enough to keep reading in a fast pace and it did not feel lacking at all.