Hidy's place is fantastic - it's clean, roomy (three of us stayed - 2 upstairs and one on the sofa in the living room area) and really well laid out. Hidy's labelled everything, and he was great at explaining anything we struggled with. Ryogoku was a super nice neighborhood, too. You can really feel the sumo presence, and the edo-tokyo museum is pretty great. We'd absolutely stay again. :)