Welcome to Oslo and to Keyserløkka, my favorite part of the city! The apartment is cozy, and good for 1-5 people, depending on how close you are willing to sleep. ;) Additional to the bedroom, a large bed can be put in the living room, and it is possible to sleep on the couch.
You can cook in a well equipped kitchen, or go to restaurants nearby.
The bus just outside the house takes you to the city center in 15 minutes, and the subway taking you anywhere is 6 minutes walk away.
Hope to see you!