I can’t recommend Leif’s lovely apartment enough! The location is amazing- 10 min walk from the central train station, tram stop a block away, and all the museums and cultural sites you probably want to visit in Oslo within walking distance. The barcode neighborhood itself is also wonderful- contemporary architecture, right along the water with lots of places to sit, swim or go for a run, so many yummy restaurants and some super cute boutiques. And the apartment is cozy and clean, a great space to come home after a long day exploring.