Really liked the aesthetics, and the reloadplay really kept me on edge. Headshotting a zombie with half of it's head missing is a tiny bit counter intuitive. "Zombies rising again" sequence got me.
The shooting zombies are not fun though, they move to much and deal A LOT of damage. At the end I was killed by one of them, which wasn't fun.
Also pressing "Tab" while at the save computer turns it off and I don't think you can save anymore - the screen no longer turns on.