Mathias place is really awesome. He's created an efficient use of space with music that can be played in every room, including the kitchen when making food! His TV room is so nice to relax in after a long day. The bed is comfortable and the place is very clean. The best part of staying here is that he offers free use of his bikes which is the only way to truly experience Copenhagen and get around the city. The location is near the hipster Nørrebro area and there is a grocery store (fakta) right across the street from the place. It is very convenient getting to any place in the city by bike (20-25 min). We also rented a car for a day trip and there was a parking spot we were able to use as well.
We really enjoyed our stay here and recommend you take advantage of his bikes to explore the city. We felt right at home and couldn't have chosen a better place.