Pretty solid worldbuilding, but it's left me wanting some more.
The setting is rather strong in how it sets a post-collapse zombie story dynamic among its population, and it's one of the rare cases where I want to hear more about the faction politicking. I want to get a good idea of how this place is organized, what is the culture in there, which are the ghettos and where're the untouchably rich — more human detail, if you will. It lends itself to a lot of exploration of the human condition without having to squeeze a stone.
From this mindset, I feel like the end result is somewhat disappointing. It's not bad by any means but it doesn't come close to what it could be. Although maybe the kind of worldbuilding that I want is far easier in tales than articles.
I'll be voting neutral on this one.