The concept is pretty basic: A vampire outbreak killed modern civilization, and now there's only The Colony (Which Must Be Capitalized). Kayla is a Bellator for The Colony, meaning: She goes out and scavenges whatever is needed.
Of course the Colony's leaders are oppressive, dictatorial, people die for no reason, yadda-yadda. The usual. And when Kayla gets thrown out of the Colony (During The Capitalized Gathering), she takes on the task of saving mankind.
So, yes, Sorensen didn't reinvent the wheel with this book, but that could've been fine. Could have. If she hadn't fucked up pretty much everything else.
First of: The lack of editing. There is no goddamn excuse for orthography this bad, not when you're supposed to be a writer. It wasn't even all the typos that kept annoying me to no end, it was the lousy punctuation. How the hell can you fuck up so bad in your own native language? That's just embarrassing. English isn't even my mother tongue and I noticed more errors than I could possibly make myself!
Second: Infuriating "storytelling". Everything that was supposed to sustain suspense only ended up aggravating me. The reason anything and everything happened when shit hit the fan was because some idiot (aka: the protagonist's first love interest, Aiden) lied about something.
Throwing bits and pieces of information at the reader to keep him curious is fine, but constantly pulling shit out of your ass without ever resolving it is annoying. That doesn't keep me on the edge of my seat, it makes me want to slap you in the face. There's the difference.
Third: The characters were bland, and there's really not much more to say about that. When they weren't bland (like Kayla, our generic heroine, whose motives for doing anything are "because XY told me to!" - aside from the fact that she's supposed to be a strong-willed character), they were obnoxious. There was nothing remotely likable about Aiden. He was supposed to be the guy who wanted Kayla to make her own decisions, but kept making them for her, because of his twu luv!!11 for her, and of course every girl needs a dumb, stubborn dickhead to do that.
And last, but not least: Plotholes, or at least stupid inconsistencies that could've been avoided easily. First The Colony is underground, but then Kayla mysteriously does something while the sun's shining. The aforementioned character inconsistencies. And so on.
This book reads like it was lazily written and lacks pretty much everything a good book should have. On the other hand, it's probably nice for someone who really doesn't give a fuck about any of this and just needs a YA-Fantasy-Romance-fix.
I do like an easy read when I crave some literary fastfood, but just because it's fastfood it doesn't have to be that bad.