I love the whole idea of someone being reincarnated over and over for thousands of years to protect all humankind from Fallen Angels. It's a classic good vs. evil story, with Ellie turning out to be Gabriel, but in human-form. 
 The characters fell flat for me, though, and were pretty cliche and stereotypical. I found Will to be the most interesting, and I wanted to know more about him and his past. Ellie, on the other hand, was superficial and, at times, really irritating. 
 It was an enjoyable book, and one that was a pretty fast read. It was fun, and the fight scenes made it a lot more interesting. The forbidden romance was pretty obvious from the moment that Will and Ellie met, and I have the distinct feeling that we'll be seeing more of this series. I LOVED the mythology of the book, and was glad that it actually made sense. 
 As far as Ellie getting her "powers," it was pretty standard- she gets introduced to them on her 17th birthday. What wasn't standard, though, was the fact that she grows into her powers. It was pretty gradual, and even at the end of the book, she didn't have a full grasp on her powers. 
 I also want to know what's going on with her dad. You learn that he was a pretty good dad, and then one day...he randomly turned into a jerk, and Ellie and her mom don't know why. I was left with the feeling that this could be really important, but I suppose we'll have to wait until the next book to find out what's going on there. 
 It gets a 3 out of 5. It was enjoyable, but there wasn't a lot that stood out to me.