The stay at Eirik's place was an overall nice and relaxed experience. The surrounding area is really calm and it's only 10 min into the city centre by feet. For me who was staying there for work it was perfect. Also Eirik was super nice, helpful and relaxed and answered quickly when I had a question.
The flat has a super modern kitchen and an eating table on the first floor, whereas a big bed, a smaller bed, a big cozy couch + TV and the bathroom are located in the basement. All was elegantly furnished and super clean. The only thing was that there is no ventilation (yet) in the bathroom and you could only air the flat through the big window in the first floor. Also there is no wardrobe, but a lot of clothes hangers instead. But this were no big inconveniences for me personally. In my opinion a flat like that in this location for that amount of money was a really god deal, regarding the general price conditions in Oslo.