I will try to make this short.
Øistein's place is excellent for travellers. The location is near the Hellerud station of the metro. The neighborhood is very pleasant. It will only take you less than 20 minutes to reach the city center.
The property itself is spacious enough for four. The beds are comfortable. There is a range for cooking, pans, plates, etc. Øistein even provided bread, cheese, jamx and juice!
Øistein is easy to communicate with too. He is very helpful and friendly. He has collected recommendations for tourists and shares them.
Will definitely stay here again!