Jo is a warm and welcoming person. She was very easy as far as check in was concerned. The studio is located in a green and beautiful area and you can very easily get to town by bus 30 or by taking the ferry. Walking and enjoying the environment after the hustle and bustle of the city is nice.
If you are satisfied with basic comfort the studio will suit you. As an older couple it would probably have been better to hire an apartment in the same house. The studio was rather minimalist and a bit youth hostel style and maybe the apartment would have given some more comfort.
But on the whole we certainly enjoyed our stay in Oslo.