We had a great stay with 6 adults (3 couples) in the apartment of Heidi and Torben. We felt very welcome with a fridge full of beer and everything we needed for the breakfast.
The circle couch was very cosy to sit on with the 6 of us :)
Because of the central heating it was really warm in the apartment. And after a long day sightseeing Copenhagen the 80 stair steps were a bit exhausting ;-)
But we really recomend this place to stay!