The appeal of a thriller is in the suspense, the plot twists, the near-misses. Sadly, that's missing in this book. Throughout the book, the heroes encounter not even a hint of danger. There's no sense of urgency, no dangerous situations, no resistance at all. Their plans to undermine the villain proceed without a hitch in sight. Meanwhile, the villain's minions either self-destruct, abandon him or are killed by the villain himself. It almost seems as if he's racing the heroes to put a nail in his own coffin. If the heroes had all stayed home, one gets the feeling that it wouldn't have made a difference in the end.
Unless you are a die-hard fan of Dean Koontz who doesn't care about the content, only that he wrote it, don't bother with the book.