Brilliant communication from Karl.
The apartment is in a great location with Tram and Bus Stop right outside the door and Majorstua Metro Station a five minute walk up the road.
Plenty of bars, restaurants, take aways and supermarkets within a very short walking distance.
Frogner Park (2-3 mins walk) is essentially Karl's backyard and provides beautiful surroundings within which to wander and relax despite being in a large city.
Was met by Karl at the apartment right in time, given a thorough tour of the accommodation and facilities. Check-in and checkout were both so simple.
A highly recommended Airbnb that I hope to stay in whilst in Oslo on business in the future.