We really enjoyed staying at Peter's flat - the location was great, in a trendy area with lots of restaurants and bars nearby. It was a bit further from some of the main sights of Copenhagen, but we liked being able to travel around the city more.
The room was very nice although it was quite cold and it would have been helpful for Peter to tell us how the heating worked or simply turn it up as we were there on a chilly weekend.
Overall, though, very pleasant experience! Would definitely recommend for anyone looking for a cozy spot in Copenhagen - except be warned that the apartment is up several flights of stairs!