I'm not the proper audience for this book, having missed the first two parts of the trilogy. But I'm reading it for the 2013 Hugo Award ballot anyway.

I liked the Georgia II chapters more than the Shaun ones, maybe because I identified with the disorientation she felt. I didn't understand the coincidence of her liberation from captivity, nor the way the climactic action scene worked out. It probably was cathartic to readers who followed the entire series and who probably had a greater tolerance for running zombie scenes

The chapter headings got more annoying to me the further I got into the novel, but I can see that once this structure had been established, it could no longer be abandoned.