Location not convenience compare to Shinjuku and Shibuya, the space of rooms are good and worth to the amount of pay, a quiet place that could experience real Japanese resident life.
Only one subway line access, station close to the end of the line, train usually crowded all day, especially when people go to work in morning. If you planned to Daiba by subway, at least one hour on train excluded walk distance and transit time. It takes 15-20 minutes (included walk time) to Shinjuku but still have limitation by train service schedule. For travellers want to visit more place in Tokyo, please consider.
The house have few rooms for bnb on G/F, is quite tidy and clean, two puppies are very lovely and warm welcoming, hosts willing to help if you could luckily reach them.