We enjoyed our stay at Mona's flat much. Very nice and uncomplicated contact with the host, Mona is a really open and talkative person. It made much fun to meet and speak with her. The bed was one of the best I've slept in. The room clean. Location good, we could reach city center on foot within 15 minutes.
We would be happy to have a chance to visit the room again some day in future. I recommend it. Oslo itself is really worth seeing!