** spoiler alert ** 
 I'm pretty appalled that a New York Times bestselling author would use the wrong you're/your as much as she did in this book. The use of "btw" in characters' speech also grated on my nerves quite a bit. It just made the author seem like she was trying too hard to be cool. And characters were constantly saying "effing." The only thing that bothers me more than the unnecessary overuse of cursing is the unnecessary use of fake cursing. ("effing," "f-ed," etc.) Drove me CRAZY. 
 I liked the idea of a story with Jinn, but everything else fell pretty flat. I didn't like any of the characters. Ari was okay. Charlie was a worthless jerk. I spent the whole book waiting for Ari and Jai to ditch him, which unfortunately never happened. Jai was pretty bland, and a little too devoid of personality. As the readers, we know why he acts as distant as he does, but he seemed to take it a little too far . Ari's friends from school are paper-thin, personality-wise. Derek is a douchebag. And Ari spends way too much time and effort trying to please people who disappoint her. Ugh. 
 It also bothered me that, even with the amazing power Ari had, she kept hesitating to use it. "Oh look, that demon's kicking my ass and my hot bodyguard's ass, and I could totally stop her with a single command (didn't even have to be vocal, she could just THINK it!) but I think I'll let her beat us half to death before I remember to use it. Then I'll do the same thing the next time we're attacked 8D" Seriously, what? 
 Not sure if I'll continue this series or not. If I do, I'll be borrowing the books from the library; I'm certainly not spending any more money on them.