While it’s in many ways a typical version of the apocalyptic genre currently fashionable, this book is quite good. It has some significant originality, and is generally compelling and well-drawn. Aside from a few jarring factual problems that should have been caught by editors (pistol triggers don’t not move if the magazine is empty–the hammer or striker still falls; and they’re called “magazines,” not “clips”), it’s well-crafted.
It does show some elements of being written for a movie adaptation, but not enough to really cause reader dissatisfaction. And the ending is original and really quite good. Given the rush of zombie books, games and movies, the author actually managed to make his story stand out from the crowd, which I think is a pretty considerable accomplishment.