Many interesting concepts – probably too many for one book. The story progressed very quickly, which drew one along, but there was less character development than I like.
Also, I found that I was jerked out of the story when the narration, which nearly exclusively followed Ray’s point of view, abruptly mentioned something that couldn’t have been known to him, or something that he didn’t notice.
Could’ve been good, with more pages to contain the story and better editing, but there were enough little things to make it not fun.