Rune is the perfect host. My initial host cancelled just when I arrived in Oslo(!), but Rune responded to my inquiry very quickly and was able to provide a clean and spacious place with a private bathroom in the main central area of Oslo. The sleeping area and bathroom is almost sealed off from the rest of the apartment, so it feels almost as staying in an entire flat. Kitchen is not available but there is a kettle and coffee/tea in the room.
Rune was very friendly and provided us with a local of map of places to eat and gave tips on what to do in the city. He also allowed us to keep our baggage in the flat after we checked-out, which was really helpful.
I would highly recommend to stay here for your visit!