Karen's place was great. The bedroom and bathroom may have been cosy, but the lounge and dining area were very spacious and very comfortable for two. Even though the apartment was on a quiet street anyway, the double glazed windows made sure it was super quiet.
The apartment was within easy walking distance to Istedgade, local cafes, supermarkets and the buses to/from Copenhagen train station. There was also a bicycle hire place (Recycles) close by too.
As for Karen, she was a wonderful host. She was very friendly, easy to communicate with and made us feel right at home. I would definitely recommend Karen's place.