Flynn's writing truly is such a match for me. Her characterization is fantastical. Really, you see into the minds of these people, whether you find good or bad, all is revealed because you get both perspectives. I love the back and forth perspectives between Nick and Amy. More and more we learned who they are and begin to solve the mystery. (view spoiler)[ More and more we question who they are but I never questioned what they did, even as bad as it got. What I mean is with novels in this sort of genre the question of "but people wouldn't do this" or "that doesn't make sense" tends to creep in because everything really has to be down pat. I never questioned; Flynn made me believe and she really really did her homework and planned it out beautifully. Moreover, she made you see the human sides of both of them thus showing how regular people can go absolutely batshit crazy, how, for some, it's not an overnight thing. How their experiences and encounters stick with them and, with the bad ones, they either let them take hold and lose their minds or they do something about it. Amy did both. She's a lunatic but really when you get to the end, so is Nick and they are both meant for one another, as sad and twisted as it is. (hide spoiler)] 
 The casual way she wrote really grabbed me too and how she would describe things comparing them to familiar sounds, tastes and such that aren't normally compared to but should be because they give you a real feel for it. After reading this book I'm almost exhausted. It wasn't hard to read, rather easy really because the writing was so fluid and intriguing, but exhausted because the characters put the reader through the ringer, constantly wondering and anticipating. Bravo to Flynn on this novel! I'll be reading more of her work.