Nina's rental is perfect for a few days in Oslo. It's looked in a new construction area; the unit only a few years old and there are a grocery store and bunch of restaurants downstairs.
Nina met us at the train station and walked us back to the apartment while giving us a mini-intro to Oslo and the points along the way. She answered some of our questions and told us which buses to ride to get around and where to pick them up.
The little extra touches were nice, too, including some chocolates, coffee, teas, and fruit when we arrived and some funny books to learn about Norway's culture.
We would definitely stay here again.