Kumiko's place is very neat and clean and in a very good location f om where you can take Metro, tram and busses very easily, a lot of options to eat and takeaway.
I would definitely recommend this plac for very young couple to visit as this is not so far from oslo center and national theater station.
host is specifically very lovely lady and very helpful and a very insightful person to talk to and to learn from.
we would definitely stay again at Kumiko's place whenever we will visit oslo in future.