We stayed in a centrally located studio apartment in Copenhagen, which made getting around the city very easy. Our unit was on the top floor, Apartment D. If you are bringing heavy or multiple bags, I suggest requesting the first floor apartment instead. We had no issue since we only brought carry ons.
The studio had everything we needed and was overall very comfortable. The only minor issue was the shower, which tended to pool some water outside the door, but it was manageable. A solid and convenient place to stay.