Waaay too easy to die at the outset. I frequently have problems with survivors randomly not shooting. Weapon is fully loaded, they just don't shoot the zombie gnawing on them. Not nearly enough starting food. Basically have to keep trying new games until you get lucky, and have enough to establish yourself.
As mentioned by others, is kinda dumb to clear a place out of zombies, and then automatically just leave all the loot behind. Should be able to properly clear a place out, get all the loot once you've wiped out all the zombies. Or maybe just keep having new waves enter, forever, until you die or leave. Which means you need an option to leave.