I personally really like this book, but it spends too long talking about her alcohol addiction. The book's plot twist was great, but it was arguably quite predictable.
However, it is a good book overall, and I would recommend it to most people (isn't a very good book for impatient people I think) looking a good read.
Edit: I wouldn't really recommend buying the book though with your hard-earned money though, maybe borrow it from a friend or the library.