Kamilla is a very nice host. She gave us all the information to come to her place and also some advice of things to do. The location is good, closed to the center (10 min by bus), with a supermarket (5 min). The flat is clean and conform to the description. We could use tea and coffee for breakfast. I am cat friendly so it was a pleasant time.
I recommend this place, it's perfect for a week-end in Oslo.