This is a great value in a good location - right near the harbor and plenty of shopping and restaurants. 20-25 minute walk to the main train station. There were two rooms in the apartment and a shared bathroom. There are quiet hours and I never had a problem with noise from the other guests. Everything was clean and the bed in my room was very large and comfortable (it took up most of the room). There was water, coffee, and tea available in the room which was a nice touch. The room also had a small refrigerator, a tv, and a guide with things to do around Oslo.
Overall, this is a great deal with a super responsive and informative host, all the basic amenities you need, and a fantastic location.