My son and I have spent a week in Bjorn’s house and it was a fully satisfactory and pleasant stay.
The apartment is really cozy, even better than the photographs. It’s fully equipped and rich of nice and sophisticated accessories. Even two big TV set, with two Apple TV receivers and a lot of DVD and CD (very appreciated), playable through a sophisticated stereo rack.
The apartment is really 2 minutes walk from the nearest underground station and three stops from the a Central railway St. A new building is being built just in front of the terrace, but no noises disturbed us during the early morning and evening hours.
In a word, if you decide to spend a period in Oslo, Biorn’s house is the best choice you can do.