I prefer science fiction, fantasy, and horror without the spaceships, dragons, and zombies.
This book had a lot of elements that I like: a vast, nasty SF city populated with alien and human monsters, general sleaziness and grime, an investigation into the occult, sex, violence, and gore. But I was bored to tears for the last 40% of it and couldn't wait to be finished so that I could move on to something else.
The vast conspiracy seemed pretty nebulous, and I found it hard to care about how things would turn out. I wasn't impressed with the world-building either. One of the major alien races seemed to have been constructed based on the George Lucas alien creation method wherein you must use exaggerated and bigoted cultural caricatures.
I'll give Mr. Thomas another go, but I'll likely skip his other Punktown stories.