We had a very nice stay at Kajas cozy apartment. It was much bigger then we expected. The kitchen was perfect for cooking for ourselves - everything you need was there.
The place was very clean and calm. Kaja was a very caring host, she showed us all around and was available all the time for our questions.
The apartment is located near Grünerløkka and there are supermakets and cafés nearby.
You can reach Oslo-City per foot without problems but there is also a bus and a tram station nearby. It was the perfect place for a week-long stay in Oslo.
We definitly highly recommend this place for your next trip to Oslo.