I'm having a really hard time forming a firm opinion of this book. Positive thoughts: I read it at lightning speed and had trouble putting it down. I really liked the characters (or really hated them, as the situation called for) and found the world and worldbuilding interesting and well thought out. It was pretty complex, but still easy to follow, and there was no exposition that felt out of place or unnecessary. So based on all the concrete evidence, I should completely love this book -- but I don't. 
 I can't really pinpoint why, though. The best explanation I can come up with is maybe it was a little bit too scattered. There were a lot of subplots and conflicts, and I suppose I didn't feel emotionally invested enough. For example -- SPOILER TIME -- when Peony dies, my reaction was, "huh... how about that." I guess she wasn't the most fleshed-out character in the story, with good reason, but I was even having trouble connecting with Cinder's pain about the situation. 
 But the thing is, if I look at the story to see where it fell short with regard to this, I can't figure it out. 
 Same goes for all of my other gripes. I'm still not really sure what the deal was with the neck-touching and Cinder's excruciating pain, but I think they explained that as the failure of the nervous system thingie that she had. I didn't love the Lunar plot at the beginning, but by the end, it's clear that this is entirely necessary to the story. And (more spoilers) the Thing about Cinder that is revealed at the end, I guessed in like chapter 2. Maybe the foreshadowing was too heavy on that. Or maybe I read that there was a "twist" ending (can't remember if I did, though) and was looking for clues with more vigilance than usual. 
 Anyway, the point of this contradictory and rambling review is that I liked this book but I found it a little forgettable for vague and un-pin-downable reasons. Perhaps you should read it and tell me what's missing. I'd love to know.