The door to the building doesn't lock. I came home one night to a homeless man sleeping in a chair on the first floor near the entryway that I had to step over to go up the stairs.
The landlady would come in frequently at all hours, sometimes with other people (both for showing one of the rooms to renters and for moving stuff in and out of that room) during the time I was there and didn't fully close or lock the door to the apartment when she left. I would come home at night or wake up in the morning to the door not fully closed and not locked due to this. The host claimed there was nothing she could do about this, but it is a safety issue.
The fridge and freezer were full of food that was going bad and smelled every time you opened it. The host "cleaned" the fridge, but she left rotting food, including ham that expired a year ago and other moldy meat and vegetables.
One night, I woke up to a giant roach crawling on my leg in bed. I found more large roaches after that and a few small ones. The host said she's never seen roaches there, but there was already boric acid tablets placed around the apartment, a box of boric acid tablets under the sink, and a bottle of Raid with essential oils on the kitchen counter.