Wow! This was truly a lucky find, a whole house! The location is perfect, about 200 meters from Christianshavn Metro station (plenty of restaurants and grocery stores here), a 12-15 minute ride to the airport. It is a 15 minute walk from the house past the historic buildings of Copenhagen to the Stork Fountain on the Stroget (main pedestrian zone).
The house itself is spotless and definitely has hygge. Plenty of light from the windows and skylights. The kitchen is convenient and functional. The bathroom even has a washer and dryer. The half bath on the ground floor was a nice bonus. The ceilings are low, but expected for this historic building.
Communication from Mille was quick and all questions were answered.
If you're lucky enough to find this placed unbooked, do yourself a favor and book it immediately.