We had very pleasant stay. Frederik's place is very cosy and atmospheric and there is everything you need :)
The only problem we had was with a tiny bathroom, which is actually toilet with the shower, but we should have known that from the photos.
Localisation is great: 2 mins from one metro station and 10 from another (the one connecting city with airport), close to the city center.
Laura, host's sister, was super nice and helpful.
To sum up, perfect place for weekend's stay in the heart of Copenhagen, we totally recommend it :)