The apartment is nice in a really nice location. It's very bright on a high floor (no lift). The beds were comfortable and we slept well.
Nonetheless there were a couple of things that could be improved. It was odd to see all the cupboards and drawers full of clothes but I guess that's how Airbnb is supposed to be. There was no space for us to hang our things - this would have been nice. Also they gave us hand towels for the shower - we asked for bigger towels but they said they did not have them. I would recommend they give bigger towels to new guests. Last but not least, for some reason we thought the entrance smelled of smoke but only the entrance... Maybe it's from the apartment next door? We weren't sure but that wasn't pleasant either.
All in all, we really enjoyed out time in Oslo. We enjoying time in the living room and kitchen mostly and it was fun. I'm glad we stayed there and I would stay there again. Great location!