I had a very warm and completely unexpected welcome.
Margrethe and Ole invited me to eat spaghetti and drink a glass of white wine together with them in the garden of their block of houses.
My room was perfect and exactly as described.
In the morning they permitted me to make me a hot tea or coffee in their wunderful huge kitchen with a grand piano inside ! Very cool.
The very beautiful flat was a couple of minutes ago from one of the main metro stations. There I could also rent an E-Bike from bycykle.dk. 20 minutes to walk to the Black Diamond.
I would try to get this accomodation again for my next stay in Copenhagen.