Simple, but ok. Sockets were hidden under the bed or beneath the sideboard.
At night young people were celebrating in a car directly in front of the window. Talking with them helped.
The contact person for the apartment wasn't really interested ("not our clients. Please call the police if you feel disturbed").
Also someone came in our apartment to take away two blankets. An information in advance would have been helpful, as an apartment feels like a private place.
Besides that everything was fine.