The appartment we had didn't justify the price by far. The appartment was run down and sound insulation was not appropriate.
The equipment was not as advertised: The remote control for the AC was missing, there was no hair dryer or shampoo/soap etc.
The rooms were only superficially clean.
The door lock had been intentionally obstructed, so that it was impossible to lock the room from inside.
Screens on the doors would have been useful.