Highly recommended for families or large groups. It was like having a house of your own in the centre of Tokyo, so fun.
The common area is big enough and includes a well equipped kitchen and even some toys and games for the kids. The bathroom is big and there is a fully equipped laundry space and equipment. Upstairs you will find 3 separate bedrooms which were very convenient for us. Sleeping on a mattress is unique but was actually a fun experience for the kids, and for us..
Location of the house is perfect, near several convenient stores and a lovely restaurants alley while also 3 min walk to a JR/Metro station with connections to everywhere you need in Tokyo.
The host is very responsive and answered any question we had in a timely manner and with informative info,
Bottom line - I travel a lot to Tokyo and this is the best place I have stayed in so far for families.