I received a review copy of this from Goodreads and since there are lots of long and detailed reviews already I'm just going to do a thumbnail review.
Overall I'd have to say I enjoyed myself as I was reading this but it's definitely a novel that requires a little suspension of disbelief the further you get into it. Looking back I think I'd knock it down 1/2 a star for some of the later reveals. I don't think some of the things that happened in the novel would have happened in real life but maybe. It just doesn't feel completely believable for adults to behave in the ways they did.
If it feels as though I'm being deliberately vague I am but I don't want to give away any spoilers.
It wasn't a bad read by any means and you can see from the reviews how many others loved it. I would recommend it, just with some minor reservations.