I liked it, don't let the 2stars fool you. I just felt like the book was rushed and in the process of trying to get to the end the mc seemed to behave in ways that didn't seem real. We are told she is the best in her field, she is a total arse kicker, yet she almost dies several times and it's not until she is almost beaten to death that she pulls some skills out her arse and gets on with it. Also when talking to the parents of the possessed girl, she has the wool pulled over her eyes so completely, it's hard to believe.
The supporting cast were incredibly 2 dimensional and didn't really bring a lot to the table. I'm hoping that they are a little more fleshed out in the next book. I'm not sure what James sees in Stephanie, she just seems like a self righteous bitch with no redeeming qualities. I guess having a dr in the book is handy though.

I haven't really read anything like this, and I'm really enjoying the idea, so I hope the next books get better.