We had a wonderful time in Oslo. The apartment of Nima is situated super centrally within a walking distance of the central station. Very nice bars are close by. The apartment was very cosy and decorated in a quirky way. We especially loved all the plants. We found everything we needed. Check-in was very easy due to the key-pick-up station at a supermarket close by. (This supermarket is also open on Sundays and bank holidays. So you do not need to worry about that.)