I can't say I liked the style of this, it didn't flow too smoothly for me. And it was hard to discern between what Nikki was thinking and what others were saying in her mind since there were no italics used to show it easily.
BUT I have to admit that despite that, I kind of got pulled into the story. The hunt for Jasper almost had me as bloodthirsty as Michael and I found it quite hard to leave alone. It was nearly constant action with hardly any slow bits for me to get bored.
As for the romance between Nikki and Michael, I'm not sure if I was convinced by it. It all seemed sort of sudden.
I have books 2 and 3 in the series but I'm not sure if I'll be continuing the series yet.