Positive: Clean sheets and overall very clean room. Friendly welcome, easy process.
Negative: "Appartment" is located in the cellar of a building and quite claustrophic. No possibility for fresh air. Air smells of heating oil (and sewerage) and gave us a headache after one night. One has to climb up to furniture to open a tilt window which doesn't really help. Stairs down to appartment are not easy to use. Very small and steep. Definitely no escape route in case of fire etc. Wouldn't recommend if you have even a slight mobility handicap. No wifi (or wasn't working).