I’ve read the five novels of the series and I came away disappointed. I liked the initial premise a lot, and depicting Frankenstein as a modern-day evil sorcerer was spot on; but the promise of the series felt more or less wasted. The plot lines seem oddly disjointed, as if Koontz had planned some things originally but let them drop. In fact, the long delay between novels 2 and 3 suggests he lost interest in it at one point, and scrambled to simply get something down on paper.
The things that didn’t ring right with me are: [spoiler]How Deucalion has very little role in the stories beyond the beginning. The obvious role for him would have been to be the agent of God’s wrath against Frankenstein. Instead, Frankenstein is undone simply by the decay of his control over his creations, while Deucalion more or less just stands around and watches. A much better plot would have been for Deucalion to be the vector of that decay, bearing the divine spark that makes them independent people rather than soulless machines. I also thought giving him woo teleportation powers was stupid- he could have been an effective protagonist without them.
The aborted story line about the serial killer who’s collecting body parts to create a perfect mate. That begged to somehow be incorporated into Frankenstein’s plans, but nope he just gets killed.
The police detectives were underutilized. They should have been more crucial to the quest to stop Frankenstein, and faced a lot more hazard.
I don’t know what was up with the autism plotline, but it apparently didn’t go anywhere
Finally, Jocko was an interesting idea but needed to be worked into the plot in a more useful manner.[/spoiler]