The apartment is the perfect option for a stay in Norway, either for a couple of days or for longer stays (I was there for a month). The location is really good since you can go walking pretty much everywhere, and there are also nearby tram stops in case you need to go further away.
The apartment is really big, neat, and cozy. Bigger than the photos let on. Communication with Torbjørn was seamless. He is very nice and always willing to help.