Like any place in tokyo that can fit a large group, the sleeping / rooms are tight quarters. The biggest problem we found was that the house was incredibly cold. There is no heating in the stairs or entryway, and only about 1/2 of the AC units had functioning heat (I don't read japanese so perhaps there was a way to make them work but I couldn't figure it out, but we were able to make 1/2 of the units work so I'm not sure what the problem was with the others). The hot water heater also didn't work initially, but I contacted the host who walked me through how to reset it from the utility room.