Apartment is great: large, clean, quiet, with very comfortable beds. It's located in 7 minutes walking to Norreport Station, which is the heart of the city transport (trains, busses and metro). Right next to the apartment is the castle.
I had to have late check-in, and was met by the Tone in the apartment. She was very friendly and proposed me greeting beer or glass of cold water. Tone was highly available for communication. She allowed to leave the backpacks after check-out. I highly recommend this apartment.