I guess my lower rating is due to the fact that I just got done with a book I absolutely loved and the fact that I was expecting more from this. I really loved Unwind (the rest of the books didn't really need to happen) and I felt the same about this. Why make it a series? I loved the way it ended. Let the readers draw their own conclusions or figure out for themselves what will happen. We're not idiots. This book was pretty much Unwind (without the delightfully terrifying chapter that will forever haunt me) with the same character types. One thing that has always bothered me is Shusterman's portrayal of adults and parents. They are usually non-existent, but when they are written about, they are so callous they are inhuman, and never very realistic or believable. Sure, it's the distant future and everything is easy-going now, but would a parent ever really be as unfeeling towards a child they birthed as these characters are? Or maybe I've just become a grown up and if I were still a teen I'd be all like, "Yeah, my parents don't care about me! They'd totally forget about me or punish me by selling me for body parts! Adults suck!" Who knows? The best adult characters are, of course, Faraday and Curie, but come on! Put a little depth in there!