Rasmus is a very attentive and detail-oriented host with whom communication is excellent. On top of that his place is really thought-through and it basically has everything you will ever need to live like if you were at home. A comfy bed, storage space, cookware, a TV + tons of books and movies. We stayed there for over a month and everything went smoothly.
About location, it’s not in the city centre but the bus across the street takes you directly to the metro and you could make it to Nyhavn in 30/40 minutes since you leave the apartment. Besides, it has both Facta and Netto 150 mts away. If you have a bike I also recommend going to Rema 1000 which offers great value for money. Again, I totally recommend it. Totally worth it if you want to have your own space.