Zombies are okay. I'm not one of those people who goes crazy for them. Nor do I avoid them on principle. I really like the Key and Peele zombie sketch. Humor and zombies go well together. But also, of course, there is that terrifying thing that happens when a blank-eyed creature keeps coming for you, slow and steady (sort of like the turtle and the hare fable turned bloodbath. All the turtles come out of the woodwork and the hare is faster than they are, but has to stop now and again for a nap or a nibble. Even the humblest hares have to stop for a carrot now and then, and that's when the trouble really hits.)
This book has that point of view thing everyone is talking about. The main character is talking to the reader, showing us the ropes, bringing us along on the journey. A lot of reviewers liked that. I didn't so much. It was okay, but not so compelling to me and also pretty distracting.
What did I like? The protagonist's attitude. This idea that he's managed to adapt to circumstances, as one does, even if it's a zombie apocalypse. His matter-of-fact attitude, the humor, and of course the dog.
The protagonist is one I've seen many times before. The archetypal, no-nonsense, deal with things as they happen, kind of grumpy and doesn't shy away from violence, but still honest and dependable kind of guy. He loves the dog but won't say so and instead answers a question "Where's the dog? I don't know. He's like a bad penny." I'm pretty sure there are a lot of similar characters in literature and I just can't think of any right now. Which is too bad.
The book is interesting. It's mixing up a bunch of different registers. It's not doing anything terribly innovative aside from that, but it is fast-paced and a little bit of the adventure and charm of "True Grit" in there. I considered giving it a two, but I'll go for a three.