I thought I was going to hate this book, and initially, I didn't care for it. The slow build up or explanation of the world that is not-quite-ours was a little tedious and boring. A little too cliche, until the cliches worked.
It's a (murder?) mystery-thriller-psychological horror -thing. It is very imaginative, and once I got past the fact that it wasn't a real
world (as far as I'm concerned), it got interesting. I think the p-sychological bits of it were the most interesting, and I did end up loving the book.
As for a proper review? Look elsewhere, because I am just not up to the task.