We stayed at Christophers place during our extended weekend of whitsun. Christopher responded to our request a only few minutes after we sent it, which was great.
The house was fine and had the things we needed; though seemed a bit messy. We stayed in the basement, which was fine.
We were allowed to use the kitchen facilities in the private area of Christophers house, which was convenient for us - and which we did a several occations.
Christophers place is close to the a local train station with direct trains to the centre of Oslo.
Overall a good stay. Good value for the price.