The apartment was basic and did it's job. There is no TV or lounge area, so if you plan on sitting with the other people you're staying with, you would have to sit at the dining table.
The mattresses and pillows are very thin, and rooms are a lot smaller than the photos suggest.
The check in was flexible and the apartment was near some great restaurants/cafes but I would recommend staying in a hotel unless you plan on using the kitchen.
Couldn't fault the host, super quick responses to all our questions.
Note - close to a tram stop or a 30 min walk to the main area of Oslo