We had a good stay at Camilla’s apartment in Oslo.
It’s very centrally located (it’s literally a block from the royal palace grounds) and convenient. Getting to it from the airport was also very easy as it’s only a few blocks from the National Theater station.
The apartment was somewhat smaller than we anticipated but the layout is very efficient and usable and gave the space a cozy feel.
I would have appreciated some sheer curtains to allow light in through the very large and beautiful windows without losing privacy but I know i’m especially sensitive in this area so I don’t think it’s a general mark against staying there.
Overall would recommend, especially if you value economy and centrality.