Very noisy but has potential.
We lived in apartment 4a. When we arrived during the day it was fine. We started up the Jacuzzi and laid in there. Cooking is possible and showering is okay too. All fine so far until the night.
When going to sleep we figured a very annoying low humming in the bedroom which basically never turns off (just very short after a long time, then starts again). The whirlpool was off nothing we could find to get rid of it.
The neighbors were extremely noisy by making loud music, screaming and banging against furniture. This is not the fault of the host but the walls are poorly soundproofed. When for a while they only spoke we still could hear any word.
Apart from that it's a nice stay for a few nights. We only stayed for 2 instead of 6 because it was just not the right thing.