Lovely house - it is sparkling clean, modern, and fun. Yoko and Takehiko are both incredibly lovely hosts, offering to make breakfast, offer recommendations, and going out of their way to make sure I got a fedex package that was unexpectedly delivered before my check in date.
However, make sure to look into the location. It is far from central Tokyo (50 minutes by train from Tokyo station) and the route back requires a bus for the last leg that stops around 11:30PM (so you either have to walk 20 minutes from the station after taking the train, or take a taxi ride). I also didn’t realize an in person check in was required on the first day and ended up having to leave my plans earlier than I would’ve like to check in before it got too late. I think a key box would definitely would help address this.
This is a great place to stay for someone who wants to get to know two lovely hosts and maybe if you’ll be in Tokyo for awhile and don’t mind the longer traveling times. However for visitors who packed their schedule, will be out all day and returning late, it is probably not the most convenient location.