Thore and Hua's apartment is quite lovely. Very clean, spacious, bright, and comfortable, our family felt right at home. It is very easy to get to Oslo Central on the public transportation, or anywhere else you might need to go. The neighborhood has some nice shops and restaurants (yarn store!), and several good parks. We walked to several sights (Munch museum through the Botanical Gardens, and Vulcan Hall).
We had a problem collecting our luggage from the airport when we arrived, and were later than we planned to be for check-in. We finally thought of sending our oldest kid to meet Thore and Hua, so they wouldn't be kept at the apartment for even more time. They were very kind about waiting, and our son easily found the place on his own. Thore showed him everything important, and I felt they were readily available via messenger if we had any questions during our stay.