I spent 3 nights with my boyfriend at Takashi & Li's.
The house is very very nice and located in a residential area. We were given a spare copy of the keys which gave us a lot of flexibility and allowed us to leave/arrive at our own schedule.
The house was clean, and we even used the bath tub in the terrace upstairs our last day. The room was small, and the matress was not very confortable, but still we felt like home.
We were also able to wash our clothes, for which we are very grateful.

We received great advice for making the most of our visit to Tokio.
Hopefully we will come back soon. We would surely recommend staying with them.