Apartment is near to Nationaltheatret stasjon. We had only small bags, so we took the train from the airport to the museum Fram (from Nationaltheatret by bus) and then back on foot to the apartment. It was a beautiful walk around the water, Odd Arne advised us and it was the best idea!
Thera are towels, shapmoo, hairdryer, dishwasher, wifi (password is written on the router) in the apartment. The place is clean and large for 4 person.
All in all, a good place to stay and a friendly and great host. I recommend this apartment!