I rented Nicolas places for two weeks over new years and it was very convenient in the central of Oslo, close to all types of transport. Excellent if you want to explore Oslo.
The place is quite small but has a nice bathroom and a kitchen where you can cook simpler dishes.
When I rented the place, it wasn’t not super clean when I got it but Niclolas was very helpful at all time and answered all the question and provides us with things if we asked for it.