First you have to know that the apartment is in the basement which isn’t mentioned in the listing. There is a ventilation system (no AC) but you can’t open the windows.
The shortcomings already mentioned still exist: There is black mold around the windows (harmful to health). One of two window blinds is broken. Don’t expect good sleep before 3 a.m. since you can hear the music and drunken people from the bar next door even with ear plugs in. The internet connection is too slow to use (0.2Mbits up/down). Not all items in the listings are there e.g. a coffee maker. It could be a lot cleaner, especially in the kitchen. There wasn’t even one clean cup or glass.
On the good side: The host reacts very fast when you contact him.