Takeshi and his family were perfect host.
Helpful and really nice.
We even had the chance to spend a day with Takeshi and dinner with his family.
His sister even offered to drop us off at the metro station after the check-out !
The house is a typical japanese house. We loved our stay.
The weather was good but pretty cold, with the heater it was no problem at all in the main rooms.
2 toilets (a hight tech one and a simple one) were very convenient.
Kitchen has everything you need (but we didn't use it a lot, beside the microwave).
Bathroom is one of the best thing in those japanese house. You press the automatic button and 5-10min later you will have your perfect hot bath to chill (sometimes too hot ^^ we often added a little cold water). Good to know that you need to shower on the little wood stool to enter the bath clean. (everyone is supposed to be able to bath in it on the same day).
And it can feel pretty cold in the bathroom but once you enter the bath it's paradise. And after it, thanks to the hot temperature, I garantee you won't feel cold for some time.
About localisation : it's very close to kinshicho station and nishi-ojima (10min walk) you can reach every part of tokyo easily.
About the price : it will be very difficult to find something of this quality at a cheaper price. So far this is the best we've had.
Thanks again for everything.