The most important thing for Christian ist to get a (and keep his) 5*-review to stay a super host.
The room and the apartment are as described in the online-terms. Everything is quite tiny but thats no problem. The bed is comfy.
There are a bunch of guest-rules sticked to all the walls (no noise, no phone calls, no charging overnight, no make-up when sleep, ...). If you are cool with all of this, this is the place to go. It's in the centre of everything and from the rooftop you can enjoy sunset and the view over Oslo and the harbour.