We really enjoyed staying in Olaf Johan's apartment. The views to three sides of the building from the 10th floor were great, it was very warm even in December, lots of natural light, comfortable beds, and the built-in Miele coffee machine made great coffee and was fun to use. Olaf Johan provided prompt and thorough information about how to get to and into the apartment, a big pile of leaflets providing information about local attractions, communication was excellent and our questions were answered quickly. We had a great time and so did our four kids! We would happily stay here again if we come back to Oslo. Highly recommended :-)