This is an excellent crime drama. Scalzi takes the buddy cop theme and folds it deftly into a sci-fi world where an entire industry has sprung up to care for and provide virtual mobility to 1% of the population, ravaged by a disease that has severed the voluntary motor control of those who contract it. 
 Alongside the crime that is central to the story, there is an entire subplot surrounding equal rights and ultimately where your humanity ends when you interact with the world through machines and virtual reality. Scalzi uses this lens to reveal how easy it is to marginalize people when you can find a way to think less of them first. 
 This is another excellent novel from Scalzi, with quick pacing and introspective analysis if humanity. 
 A caveat: I did read the prequel novella that sets up the background for Haden's, and I do feel that this book is easier to get into if you do so. However there are enough clues and asides to bring someone directly into the book without prior reading.