Carsten replied very quickly, gave us tips where to rent bikes and what to do in Copenhagen. He was very friendly! The apartment is clean, very central, has comfortable beds. Bedrooms are next to the street, on the weekend (Friday night), we were having trouble falling asleep due to the noise of loud music being played by young students. Maybe that is an exception, but windows had to be closed for sure to reduce the noise. Bikes can be parked in Carsten's backyard, very convenient! Carsten takes great care about the environment and recycles everything, very good! Supermarkets are just around the corner, a nice Italian restaurant as well (opposite side of the house).