I stayed at Kenichi-san's place for two days with my boyfriend. He picked us up at the station and let us leave our baggage at his place even though we arrived way before the check-in time. He can't speak English very well but he is very kind and he would give us many information about the neighborhood. The room is big enough for two people and it's very clean and cozy.
I would definitely recommend him as a host especially if you are going to Tokyo for the first time.