Mona's place is really nice and exactly like described. All major sightseeing spots as well as the city center can be reached in a few minutes by foot or public transport. Mona itself is the best air bnb host we ever had! As we arrived, she directly invited us for a coffee/tea in the kitchen. During a nice talk, she also introduced us how to discover Oslo and gave us great insider tips for activities as well as good and reasonable priced locations for food! Thanks to her, we had the chance to make our two days in Oslo unforgettable :)