** spoiler alert ** Better than most of Koontz's recent efforts.
Characters: Odd is still a good enough protagonist. I've noticed that I am in the minority on the Odd books. I liked the this one and Odd Hours more than Brother Odd.
In this book we get one of the better Koontz's villains. A beautiful young women obsessed with the occult. Her ravings compared to Odd's self-depreciating humor during their conversations made for the funniest experience I've had in a Koontz novel. The way the women seems attracted to Odd, calling him "boyfriend" is also pretty creepy.

Plot: Straightforward rescue mission. It drags through the sewer too long. The hostage, Danny, was not introduced or even mentioned in the first book as far as I can remember. I think the professor who died was and in Odd Thomas he constantly rails against the academic community which is par for the course for Koontz and other conservatives.

Climax: Not too climactic. The villain is killed through a deus ex machina. And the "Final Boss fight" is against one of the larger henchmen.
Still has the same problems as some of Koontz recent efforts. The villains aren't really developed. The sentences, paragraphs, and chapters are all short. Because I like the villain so much, I'll forgive this.