We stayed in Per's place over Christmas. The apartment was lovely, clean and very comfortable.
We arrived in Copenhagen a day earlier than our check in due to transport troubles, and when we asked Per if we could stay in his apartment for an extra night he was very accomodating and allowed us to stay with no hesitation.
The apartment comfortably fit three people - two people in a double bed and one on the massive sofa in the living room. The bathroom and kitchen were very clean. The apartment was easy to get to from both the airport and train station, by either bus or taxi.
Overall we were very happy with our stay and we would definitely recommend Per's apartment to anyone wanting to stay in a nice location in Copenhagen.