CrowNoYami
Overall it had a good plot and development, there are interesting powers and a manhunt going on that keeps your interested. I found the romance factor was unneeded, though I do understand why it was put in. Sarah to me is a very bland character, though 'John' aka Number Four, shows that he is not only a strong character physically but mentally as well and well-aware of his emotions.
I'm giving this book a 4/5, it was a good book, I don't regret reading it, but I do feel like some things seemed a bit 'off'. While I would probably pick up the second book if I found it while browsing, it's not something I'm rushing out to buy.