I had a wonderful stay at Natasia's place. The apartment is super clean, simple and thoughtfully laid out (it's much nicer than the photos suggest). I also loved the location. It's in a cool neighborhood with great cafes and bars nearby, which were mostly filled with locals. The apartment is about a 25-30 minute walk to the city center, but after seeing the main attractions I actually preferred hanging out in Natasia's neighborhood, which has a really nice feel. If you want to cut down on the amount of walking you'll do, there are a bunch of bike shops nearby where you can easily rent a bicycle. Natasia was very responsive and easy to communicate with--she even let me drop off my stuff in the morning and took time to answer all of my questions despite the fact that she was getting ready for a long trip. I would definitely stay there again if I am ever back in Copenhagen.