There's something to be said about making it 3 books into a series. Usually, if a series has been interesting enough to keep me reading to book 3, then by this point I've grown attached to the characters and overarching story enough to ignore any issues that arise. At this point, a series has to work hard to make me turn away from it, rather than having to try hard to keep me reading.
The Z-Burbia series has reached this sweet spot. I have grown attached to Jason, Elspeth, and the rest of the cast to the point where I will keep reading even though enough happened in this book that would turn me off if it had happened one novel earlier.
Sadly, what I felt were the strengths of the first novel, have been turned on their head. I liked the first book because even though this is a Zombie series, it seemed to promote the concept of mankind trying to find a way to survive, or maybe even thrive again. It never fails to amaze me that with a built-in antagonist (zombies) these books always turn into a large-scale human on human drama. I get that some people would go bad in a post-apocalyptic society, but I have to believe that the majority of people would try to keep hold of their humanity. This book takes a step off the deep end in terms of this subject matter and once again what could have been a story of humanity's joint struggle for survival becomes a human war in the face of extinction.
The other thing I liked about this series was that the protagonist was not the usual kick-ass, ex-military protagonist as in most Zombie books. Jason was a thinker and he was prized by the other characters for his mind, it was what made him a good protagonist. It's a shame that the thinking hero has vanished and for the last two books most of Jason's story is about him trying to battle zombies with brawn and no brain.
My final issue was one with POV jumping. I don't know if it was because I was frustrated with other aspects of the book so I was overly sensitive to it, but I found myself getting annoyed with the constantly jumping POVs. We seemed to spend a lot less time with Jason than normal. I wouldn't mind if the scenes with each POV weren't so short. It felt like I was just getting into one storyline before being whisked off to another. I never got comfortable or into the story because I never got the chance.
Overall this isn't a bad novel. It's fast paced, there's enough to keep me interested and, like I said at the start, 3-books in I am involved enough to keep reading. However, it's a definite down step for the series. I hope it picks up a little in the next book, but considering where this one left off, I doubt it.