My family and I (5 adults) enjoyed staying at Kotaro's bnb. Rooms were clean and there were no issues with either the room or communicating with the host. If my travels bring me to Tokyo again I would not hesitate to contact this host once again. Each room had its own private AC and heat unit making it comfortable for thre guests. Small kitchen and common area makes the family dining very cosy. The heated toilet was a nice plus.
The unit was conveniently located in Tokyo not far away from Shibuya or Shinjuku and other amenities that you might require.
Will come back again