The apartment is quite cozy, very well equipped and really centrally located, it's a 3 minutes walk to the next metro station and even to the famous Nyhavn it only takes a few minutes by feet. Across the street is a small bakery, which sells delicious pastries and also a lot of restaurants and bars can be found literally just around the corner. It might be a bit noisier during weekend nights, however, noise should not be an issue during weekday nights.
Additionally, the host was very responsive, provided us with a guidebook containing some of his favourite places around, and showed great flexibility regarding check-in times.
Long story short: A full recommendation for everyone's visit of Copenhagen!