More like a 3.5 rating. 
 This was pretty much me throughout the book. I was pleasantly surprised I dug the sequel more than the original. My expectations weren't high nor had they plateaued too far either. I expected to enjoy this book and that's precisely what I did. 
 I liked Sophie as the female lead. Typically the young adult genre plays up the damsel in distress under the guise of strength. They constantly say how strong-willed they are, powerful, and so forth yet plot proves they cannot function without a man. Sophie is by no means strong, but at least she doesn't pretend to be either. She freely admits she's young and asks for help. Girl may not be fierce, but at least she's not fake. She is a seventeen year old that's confused, scared, and naive, but she's honest about her shortcomings. Sophie isn't my favorite character, but I can respect her sarcastic tongue and forthright ways. 
 The secondary characters were also amusing and likable. I didn't expect to like her dad, but the stuffy guy grew on me. While I didn't appreciate Sophie calling him dad from the start (I mean, come on, you just met the dude and already granting him a fatherly term of endearment?), he's an affable character. The demon duo of Nick and Daisy broke my heart a little bit. They didn't deserve the life bestowed upon them. As for Jenna? Still love the girl to pieces. 
 As for the boys... 
 There is Cal: 
 And there is Archer: 
 Could the two be any more different? 
 You have the golden boy, Cal, who hides behind a wall that Sophie could easily knock down. His feelings for her are clear to everyone but her. Curse stupid girls and their inability to notice when somebody likes them! I immediately dug on Cal from the first book and that transferred to the sequel where I continued to get attached. While Cal may be quiet, his words often hold value. He does more for Sophie in this book than most boys would do for someone they care about. Or perhaps it proves just how much he does care about her. 
 Then you have Archer, the smug smart ass I grew fond of in this book. It took awhile for me to warm up to him, but eventually I found the guy genuine and honest with Sophie. When he confessed all that he wants to do with Sophie, I'll confess I got kinda gooey. 
 I admit I'm over the classic cliche of the love triangle. It's obvious which boy she'll pick and it's these type of things that keep me from giving it a higher rating. A lot of this story feels like recycled ideas from other young adult books. Was the lab partners line really necessary? Did the one boy have to sacrifice in the name of love? 
 Despite my qualms, I am keen on reading the next book. I need to know what happens next.