My review from Goodreads didn't carry over, so... here we go.
I hated this book at first. It felt like Gatsby-lite, which was baffling, and I wasn't feeling all of Lockhart's storytelling choices. (As I am a gigantic fan of The Disreputable History of Frankie Landau-Banks, this shocked me.) However, after many struggles and much wondering about whether or not I should finish, it clicked with me, and I really enjoyed it and started really caring about what happened.
And that, my friends, was more shocking than any twist ending. Give it a go. It's polarizing, but it's certainly unique.