I stayed 4 weeks in Marthe's condo. It's located in a nice neighborhood of Oslo with great view of the city and plenty of walking opportunities just nearby. The T-bane (metro) is less than 5 minute walking from the condo which easily takes you to the city center in 20 min. The condo itself was very modern and clean. In my opinion, the pictures don't do justice and the condos is better than what represented by the pictures. Marthe was a nice, friendly and understanding host and I highly recommend her condo for long- or short-term stay.