Ingrid is a great host and her place is excellent. She personally took time to show me around, and made this first time visitor to Oslo feel absolutely at home. She has prepared a great list of attractions including local hangouts that are not in any guidebook but just nice places to be (the brown bar was outstanding, Ingrid, ended up staying for hours). Her home is clean, excellently furnished and central. I either walked or used public transportation, all of which is easy. The pull out bed is better than most hotel beds; one needn't worry about that at all.
Would definitely come back to Ingrid's place!