Sayoko is one of the best air b&bs I have stayed at. Her hospitality is amazing: super easy check in, checked in to see how we were, gave us local tips, super fast in responses & just all round lovely.
The apartment is close to a JR line so easy to get around Tokyo, it is much bigger than a lot of spaces in japan.
I would really recommend this apartment and will visit again next time I am in the country!