I highly recommend staying here! The futons were very comfortable, and the hosts provide anything you might need in the room -- snacks, electric kettle, and a sink with a bucket and detergent, among other thoughtful things. Much more than in other places I've stayed that were more expensive! Our room had two big windows. It is slightly inconvenient that there is no shower, but the low cost is well worth the slight inconvenience, and the sento is actually quite a nice experience. We thoroughly enjoyed bathing at Kanda Aqua House.