Overall we had a nice stay. Eri is a responsive and caring host. He went out of his way to mail us something we left behind.
As for the house, the location is great. Nakameguro is full of fun restaurants and cafes. As mentioned by a previous guest, it is an older house and the first floor was cold and uncomfortable even with the heater on and curtains closed. The rooms upstairs were nice and warm, and second bathroom upstairs was a big plus.