From what I've read so far, the people who read this book fall into two categories: absolute fans who salivate at all the blood and guts and bits and things, and people who just threw up. I occupy a weird place in the middle, as with in most things. Tony Burgess is a very adept writer with a distinctive style, and he makes some fascinating choices in constructing his story. At the same time, some of those choices don't exactly work, and I'm left at the end with a pile of questions and nattering irritations.
So, let's break it down.
The Good: The narrative style is absolutely delicious. The author's sharp, short sentence construction was initially hard to get into, but it opens very quickly into a stream-of-consciousness that actually sounds like the sort of thing you'd find inside someone's head. His style immediately humanizes his characters and engenders an empathic response even when the character in question is a categorically bad person. Along with this, the choices he made while constructing his story are absolutely novel. Without dumping too much of a spoiler, halfway through the book the author completely disempowers his main character - he doesn't KILL him, but renders him an absolute observer, completely incapable of any actual action within the story. I can't think of anything offhand that has tried the same thing, or any other author that might make such a sad, self-contained perspective succeed.
The Not As Good: The weird story construction absolutely eviscerates the ending. Horror in general isn't really supposed to have a good ending; its characters are designed to leave with scars, if in fact they leave at all, but at least they, well, end. In this book the conclusion just sort of happens. Part of the oddity in rendering your main character a passive observer is inherent in the very concept: they have no ability to act on the story and the strength of the narrative becomes entirely dependent on the actors and events around them. In this case, the people surrounding the main character are, well, inhuman. I don't mean to say they're literally goats or zombies; rather, they don't think or act like humans do. No motivation is given for anything, no reason, they just kill and fuck because sure, why not. It's very hard to place any sort of emotional weight on the narrative, because it just sort of occurs, without any real plan or motive. Oh, and the whole "none of the charactes ever bother to explain why they're murderfucking entire towns" bit also extends to other huge, giant questions in the book, like "why is this even happening", "how is this even happening", and "why should I care". With that in mind...
The Bewildering: Why do so many apocalypses (apocalii? apocalix?) have such stupid and preventable causes? Like, let's say I'm writing a book where peoples' skin comes off and flies around, wrapping itself around other people and taking over their bodies. All good there. Now, let's say the skin-flying-off happened because of a botched anti-aging formula. Not... not so good. The whole concept of clinical trials is specifically designed to prevent dangerous compounds from getting loose in te public. The very practice of quarantine, medical isolation, the whole goddamn field of epidemiology is built to track and restrict the spread of disease, exactly so that something like a zombie plague doesn't get around. And yeah, I know this is fiction, and if I want to read a good book about skin kites dissolving your mother's epidermis so they can become her, I'm going to have to break protocol a little. But this book? This book doesn't even goddamn address these issues. They're simply never brought up. I don't just know why all this is happening, I don't know why nobody ever asks why. More than the body horror, more than the narrative style, this is what sticks with me: there are so many unanswered questions, which are exactly the same as the unasked questions.
Why are people zombieing around anyway? We don't know. Who thought it was a good idea in the first place to put them in low-earth orbit? We don't know. If incinerating the bodies is such bad PR, why not just turn off the cameras? We don't know. What exactly is this Syndrome that apparently causes idiopathic cancer of the everything? We don't know. Where are the governments? Where is the police? Why aren't the people who grew up under orbit doing more to act within it? We don't know, we never WILL know, those questions aren't even asked.
In conclusion, it IS an interesting read, but I really felt I ought to warn you about a couple of things. You get to make your own decisions now. There ARE graphic depictions of gross blood and body stuff, but that's not the most disagreeable thing here.