The stay was very quiet and peaceful. Easy access to central Tokyo and lots of restaurants etc around. The only issue is the pictures make the place seem bigger than it is. I know Japan has small living units, but this place is very small. It can feel very claustrophobic in there at times. There was also no chair to sit down which made it hard to just relax when needed. Also, the cleaning crew needs to do a better job as the bed and sheets looks dusty and not changed recently.
Other than that, the water was warm, heat worked just fine and toilet/bidet was as expected. Would recommend for solo travelers on a tight budget, but I personally would spend more for more space next time.