I was expecting much more from this relatively short novel. I did enjoy it, but it was not scary or disturbing as the cover blurb suggested it would be. The most 'disturbing' thing was the fact that it was an ordinary person with an ordinary life being the object of the possession, instead of some already disturbed person.
I didn't much care for the writing style, it felt like a high school effort, or a first draft of a yet to be fleshed out story.
On the other hand, it was a nice change to read something where the author doesn't need to make everything a gore-fest just because it's classed as Horror.