My boyfriend and I spent 4 days in Oslo. We really had a great stay in Maren's house. Unfortunately we couldn't meet her because she wasn't in Norway those days, but she arranged everything so that we could feel as if we were our in our home. Even without meeting her, she helped us and gave us all the information we needed about the city, transport, etc. The flat is small but very cute and perfect for one or two people, and it's only about 20min walking to the city center. We enjoyed our stay in Oslo very much and we would really recommend it to every person or couples who'd like to spend some days in Oslo :)