The apartment looks exactly like in the pictures. The location is nice, close to buses and walking distance to the subway. There are supermarkets close the house too.
We stayed there during some unusually warm days in Oslo and it might get too hot inside, that's the only negative thing about the apartment itself.
Vidar answers fast and the arrival was ok although we never met him. The one thing we didn't like was that some days previous our arrival we got an email with very specific instructions (some in capital letters) about how we shouldn't touch any of his food and how we should clean everything, even scrub the toilet to be spotless. I'm ok with house rules and of course we'll leave the place clean but I've stayed in plenty of Airbnbs now and it's the first time I get an email like this. It didn't feel very welcoming. In addition the place was not so clean to ask for an spotless toilet on our departure. There were even some used trousers and towels in the bathroom and we had to look for the sheets in a huge pile of wrinkled cloths. I think those things could be improved.