Theres 2 types of post apocalyptic show
Those with zombies
Those without.
Which is this?
The second i find far more interesting , partly becasue its not only posiible, but likely.
Zombies are just fantasy land.
Personally i feel there is enough story material in "the end of civilisation" to make endless intreresting and exciting plotlines , without resorting to zombies.
I enjoy a good zombie film/series sure - but its not as good as a zombie free apocalypse