Sachie was a great host offering to help out with our check in and was very communicative during the process. The house is decent size and with our family of 3 (including a 2yr old), we felt it was adequate. The beds in the bedroom are 2 single beds which Sachie combined for us - so that the 3 of us could sleep together but there was some unevenness (though not a big deal at all). Shinjuku area was nice with a 7-11 easily accessible and a pizza hut as well as a superstore nearby (for grocery). We ended up taking the taxi for most of our transportation (given we had a 2yr old) and the street outside Sachie's house had ample amount of taxis to flag down. We also ended up using the washer/dryer which worked out great.
The furniture was oldish and the house could have been decorated a bit better. We have stayed at other AirBnBs which felt more like home vs. this. However, that is a minor complaint as Sachie took care of everything else.