Kagurazaka is an amazing neighborhood and the “hotel” is located at the junction of back alleys full of atmosphere and loads of bars and restaurants. The room is typical small Japanese apartment with separate kitchen + bathroom and contained tatami living/sleeping. Only the tatami room has heat/AC which is normal.
The only real issue were unclear check-in instructions. Received a check-in code but expected a key code for the room. Wasn’t clear if they are the same. Tried our room but the code didn’t work—and someone was already in the room. They had the same mixed up experience. Said the bar on the ground floor could help (great place for a drink btw.) The bartender gave us the lock code (never communicated he would have it.) In the end it all worked out but clear instructions and better communication would have lowered stress levels.