Lovely house with the best sort of location you can think of -- not to be bothered by the noise of the city but convenient enough to get to pretty much everywhere. The house itself is pretty much in the campus of the University of Oslo; guests can easily use University facilities such as grocery shop, canteen, and restaurants. Oslo Central station's a few stops away.
The room is spacious, well heated and very cozy. The bathroom is not only huge but also well equipped.
Both Ivar and Siri were very helpful and thoughtful; they provided me with many useful tips. Both check-in and check-out were easy.