I am somewhat ambivalent on the topic of faith - I believe, but I have not immersed myself into all the complexities - and I seem to have a bias against faith-based music and raise an eyebrow with skepticism when I am confronted with other faith-based media. This is a bias, and, like all biases, I would like to correct it. That being noted, had I known this was a book [very loosely and tangentially:] related to faith, I probably wouldn't have checked it out from the library. Again, that's not a criticism, it's a personal flaw. Someone prepared for it may feel differently, I don't know. I note this because any recognized bias or "lean toward" should probably be acknowledged as a matter of full disclosure, as it may impact the context of the review/opinion.
The book was solidly okay. I think it's well written in terms of prose and has decent character development, but for me, I just wasn't really engaged in the story itself. A good portion of it seemed too contrived and, while I like a good thriller, I didn't particularly care (nor was prepared) for how graphic the novel was. On the one hand, the genre is "horror," albeit Christian horror, for which I was wholly unprepared and don't completely understand. On the other hand, the best horror comes from a light handed, subtle mind. I think this is a matter of personal preference. Part of the plot involved the supernatural, which is not really my thing. The "Christian-ness" of the novel isn't a huge part of the book, but it is there in subtle overtones and has an especially large impact on the ending. Again, personal preference.
Overall, I'm not exactly sorry I picked it up, nor do I feel I wasted my time reading, but I did find myself skimming a lot of the book just to finish it. I would recommend to anyone who enjoys horror and who doesn't mind if it is graphic; also, I'd recommend this to someone who can appreciate and enjoy matters supernatural. I would advise against reading it to anyone who seeks a "realistic" plot or more of a thriller bent than horror.