I'm guilty of underestimating Dietz - I went into this assuming that his work might be 3rd rate at best. It's true he puts a premium on action and thus his novels are escapist fare. But that doesn't mean that they're not good and it doesn't mean that they're not enjoyable. This is my 2nd time reading Dietz, and I will definitely be back for more of his work, but I also won't be underestimating him again.
So what Dietz has delivered is a taut, engaging, often humorous yet still gritty thriller, reminiscint of the dystopic sprawl of the movie Blade Runner. The novel sends the reader on a fast-paced tour through the solar system. The action starts on Earth (an over-populated earth in which humanity has built upwards in urbplex structures 50 levels high); moves to a habitat in Earth orbit; then off to Mars (including a surface jaunt at the base of Olympus Mons); moving next to the asteroid belt; and finally ending up on one of Jupiter's moons, Europa. Dietz does well in his descriptions of these locales - he's not focussed on the hard science but it's there in the background and resonates plausibly for a discriminating reader.
The book truly immerses the reader in this nightmaristic gritty future. The first chapter includes a mercenary ambush on scrappers who face the assault with children strapped to their waists. This also gives us an introduction to our protagonist, Max Maxon, who refuses to fire at the quarry for fear of hitting any children. The central plot of the novel doesn't begin until chapter 2, but Dietz ensures that first impressions are made by hitting the ground running.
Max Maxon is quite an entertaining fellow - brain-damaged and sporting a metal plate in his head, he's a likeable guy with a military background that he can't remember. He often spouts (in a manner similar to Tourette's) random words, nonsense, and numbers (due to his head trauma) and adds a bit of humor to the novel.
But back to the novel's milieu: here's a glossary of some of the types of people in the novel.
Android - see robot
Banger - a gang member
Corpie - an official working for a corporation (also: the security personnel for the officials)
Freelancer - a worker only employed (and paid) when needed
Greenies - members of a movement against further development of technology (militant Luddites)
Lifer - a worker with lifetime employment (often making use of life-extending technology such as organ transplants)
Popper - an assassin (bounty-collector)
Robot - a mechanical being (wherein form follows function)
Scrapper - member of a team that capture robots and strip their parts for resale on the black market
Shooter - a bodyguard or popper with a valid weapons permit
Snatcher - a kidnapper
Zeeb - (short for Zebra) law enforcer
Zombie - a brain-wiped person (with brain now used for storage of new data recorded over the former personality, intelligence, etc. Able to walk and move but not much else)
Zonie - injection drug user
And that's truly the strength of this book: Dietz's detailed vision of this stark future. Don't expect any grand overarching theme, don't expect any experimental prose, but DON'T expect a substandard read. This is good science fiction action, and it's a fun, gripping read. Enjoyable escapism, and what's wrong with that?