First, let it be said on the record that I generally enjoy and sonetimes love KA's books. But this one... I just couldn't relate to our heroine and hero and the messed up relationship that was theirs before the story started. 
 Gwen, what were you thinking? You need to grow some self respect. Who has a 1.5 year sexual relationship with a guy and not even know his name (not a first name, alias or nickname) or his number? And lets him go without protection even though she suspected, rightly so as it turns out, that he had other women the whole time he was with her. She was one of his harem of booty calls. And then we find out one of his other woman knows his street name (Hawk) and has his phone number! But Gwen didn't. Wtf? I don't get the sense that this was a love meant to be. Give me sweet detective Mitch any day, who is willing to give up a great case to be with her. F*** Hawk. I don't care how sweet he is now because I cannot reconcile the Hawk from before falling for Gwen just because she shows him "attitude". How dare he decides to not use protection with her when he is with other women especially if as it is said they weren't monitored like Gwen was or investigated. 
 All of that added together to make the 2 main characters ones I cannot respect and want to yell at. 
 Aside from that the writing, plot pace and all that were all signature KA.