I stayed at Susan's place for 1 month. I met the host at the beginning of my stay and after 3 days she left for holidays that she planned a long time ago, so I had a living room, kitchen and a bathroom entirely to myself for the majority of my stay (barring the few days, when Susan's friend came). Consequently, I can only honestly review this place from the perspective of a person that has lived there on his own.
My impression of the house is very good - the living room is spacious, the windows are large and let through a lot of light, the dining table is large, kitchen is well equipped, bathroom is clean albeit small (though the latter seems to be the norm rather than an exception in Denmark). The washing machine and the dryer are very high quality and there was enough space to keep my things in the room. Susan was also very kind to let me use a bicycle, which in a city like Copenhagen is super useful.
That being said, the room I was supposed to stay in is situated in the basement, 2 floors beneath the kitchen/bathroom/living room. It comes equipped with an electric heater, which does heat up the room quite quickly, however the heat escapes the room once the heater is off. I found the bed very comfortable though. During the time that Susan was away, and no other guest was present I was allowed to sleep on a sofa bed in the living room, and thus for the most part I ended up sleeping in a much nicer place than anticipated.
The location is excellent - it is very close to the bus stop, which takes you directly to the city centre within 10-15mins. Preferable way of transport though are bikes and it takes about the same time to reach downtown on them. There are at least 4 large supermarkets very close to the Susan's place.
Susan is very helpful and easy to talk to, and overall a great host.