The apartment is a nice cozy one and great for one person or a young couple on a city trip. The apartment's location is how Mari describes it: in the middle of the city centre, surrounded by many shops, public transport and many of the sightseeing spots are within walking distance. Because of its big window the apartment is light and the window can be darkened with a heavy curtain, which is definitely necessary when you are used to non-nordic sunrise/sunset :)
The sleeping couch was easy to prepare and as I am a small person, ok for my boyfriend and me. For two larger/taller persons it could be a bit too small (depending on how much you want to cuddle).
In total, it was a nice stay in Mari's apartment and great located for a quick break during our tours through Oslo.