Bjørn's place is a great place to stay for a city break.
We're a family of 3 who stayed for a week while exploring Oslo.
Tips if you're staying here- bring an eye mask, as it can be light at night; use the fans that are provided as it can get quite hot; go to the Rema 1000 that's further away vs the closer Coop- much cheaper. There's a bus stop 3 minutes walk away that can take you to the central station in 15 minutes (34/54). We bought weekly bus passes and used this, but did walk in once- it's not too far.
Bjørn responded quickly to our messages and responded with kindness. Thank you for a lovely space!