I have stayed in many airbnbs, this is def a great one.
Check in and communication were both very easy. The apt is situated at the edge of the trendy neighborhood, easily walkable to many great spots in the neighborhood and not too far away from city center.
The flat is perfect for 2-3 ppl, clean, modern, and convenient. It also has everything you need for a quick wknd trip. The booklet that Sigvart puts together for his guests are very helpful.
Overall, we had a great time in Oslo and want to return soon.