I had a great stay at the Como-House. Aya is a great host, giving you all the privacy you need and all the help you want. She is very welcoming, so it felt more like staying in a guest house than an Airbnb.
She had warned me about the distance from the Station to the Airbnb, but I underestimated it a little bit. If you have heavy luggage, I advise you to take the bus or a taxi from the station.
The house is an older Japanese model, so it becomes rather cold in Winter, but it is well kept and cared for. The Japanese room I stayed in was beautiful; I am already missing staying there.
So if you don't mind the distance to central Tokyo, I highly recommend staying at the Como-House for a real every-day-japanese experience.