Yumi's place was in a very convenient location to get around Tokyo and offered everything you would need for a short stay. The room is a little cramped though with all the furniture so it took a little thinking to figure out how to arrange all our luggage. Also, the lamps only had USB cables rather than a plug so they couldn't be directly plugged into the wall. The check-in process was a bit complicated as well so I would suggest having a read of the instructions sent over. Overall, a perfectly reasonable place to stay.