My partner and I decided to spontaneously visit Copenhagen a day before the weekend, and we were lucky enough to find Jonathan (and Finn)'s lovely apartment! The apartment itself is very cosy and clean. Despite being halfway between the airport and the city centre and only fifteen minutes away from either by metro, it is really quiet at night, so for a noise-sensitive person like me it is the perfect place to rest after a long day of walking in the city (assuming you don't mind walking up five flights of stairs at that point).
We did not get to meet either of our hosts in person, probably because it was all arranged last-minute and our check-in/check-out times were less than ideal, but communication through the app was smooth and they have a good system to work around the check-in/check-out thing.
Highly recommended!