I'm not even sure where to start with this. First of all, this book is in NO WAY like Gone Girl. I was surprised by Gone Girl, but this book had me predicting where it would end. There is no illusion about the main character and her flaws, and Knoll did nothing to hide the fact that she'd been through something horrible in her teenage years. Just how many horrible things Ani was forced to go through, however... Well, I'd have to say that she went through hell and back. Not that it excuses her behavior in the beginning of the book where Ani is manipulative, calculating, and utterly.... sad. She doesn't seem to have any sense of self-worth or even really see any of the light in her life. She cares about her fiance because he's rich and put a huge ring on her finger, but past that? She knows from day one that she's only let him see a part of her and she eventually comes to realize just how much of her he won't accept. (view spoiler)[(A huge part) (hide spoiler)] ANYWAY, there is a lot of character development and Ani is able to break herself down into someone that is actually recognizable as a human being, which is nice to see. I will add that I almost stopped reading at the 1/4 to 1/2 point, simply because I was tired of her bitching. I did have to see what was so bad in her past to make her this way, however. It helped that her 14 year-old self was much more recognizable as a fellow insecure high-schooler just trying to fit in, all the while making bad decisions in the meantime. 
 I did have a problem with the Planned Parenthood scene, in which Ani feels safe enough to ask for help and the doctor/nurse just turns away and says that she's not qualified. EXCUSE ME. You work in Planned Parenthood and don't deal with talking to teenagers about issues that ARE EVEN ON THEIR WEBSITE?? Ugh. This scene could've gone many other ways, but a health professional should be the ONE person to never turn their back on a victim. Knoll should know that. 
 The rest of the book was rather realistic. There is a lot of trauma involved and many triggers that are hard to watch. (view spoiler)[I was happy to see some retribution in the end, even if it's not quite what she deserved. She still needed to hear it. (hide spoiler)] I would say that I'm glad I read it. It forced a lot of issues to come to light, especially those concerning victim-blaming and even what an average teenage girl can go through. It also forced me not to give up since I hated (and I mean hated) being privy to Ani's thoughts about the world around her. I genuinely got so frustrated that I tried to put the book down, but I knew there was more to Ani's story than being a tragic, rich white girl. So I stuck with it. And I really do think it was worth it in the end.