I can't say much about this book because I didn't finish it. I managed to make it to chapter 50, about half-way through the book, but stopped there and returned it to the library.
The story started well. It held my interest and I read several chapters the first night. The plot began to slow down, however, enough so that I had trouble focusing on it. I think that the plot itself is probably a good one and could be a gripping story. The author just took too long to tell it.
This is the first Koontz book that I've read (or started reading), so maybe this is just his style.