The book took off right away with lots of dialogue and no unnecessary narration. Despite knowing what Lacey did to get there, she seemed like a very sympathetic and sweet character. If life has taught her anything is that people shouldn't be trusted blindly, and it's good to see her doubt Taylor.
I would've like to see her struggle more. Everything always seemed to come to place too fast. As to why Lacey is their only hope -- the question wasn't really answered. Guess I'll have to wait for book two to find out.