With this book, the Dark Hunter series begins... 
 From the first pages, the decor is set: you're in a paranormal romance. Lots of dangerous situations and sexual tension, action (in every sense possible) and a grim world with a lot of potential gorgeous and tortured heroes. 
 Many cliches, then, but very well managed, and some nice surprises too. There is not much black and white here, rather lots of dark grays everywhere. The bad guys are evil, yes, and some are even completely dreadful. But the demons have good reasons to be as they are, even if they made the worst choice possible. And you can't help to feel for the terrible fate of their people. 
 The worst villains in this book are human. The people who drove the Dark Hunters to exchange their souls against vengeance and eternal servitude. The author certainly knows how to depict the sleaze of humanity... 
 On the bright(er) side, we have two likeable and endearing characters: the h/H aren't perfect, they begin more or less as uptight ninny and jerk, but they grow better quickly. They discover a lot about themselves and each other, and their true nature is revealed during their initiatory journey. I enjoyed their story a lot :)