I can warmly recommend Øystein's place. The location is very central with close by tram and bus stops. The instructions that Øystein provided were very useful and it was easy to find his home. He is very friendly and nice host, very calm and nice to talk to. The place is very spacious and the room has all you need. Next time I am in Oslo I will definitely stay here again if Øystein will have available dates, his place is very popular ☺️