We were a group of 7 who stayed at this house next to Shiba Shoden-ji's main hall and we got both rooms in the building. They were both clean and warm and the thick mattresses were comfortable. There was only a staircase and no lift, so be mindful if you're travelling with large, heavy suitcases and get assigned to the room on the second level. JR Hamamatsucho is ~10 min away by foot and has lifts, but the best exit for Shoden-ji only has a long flight of stairs. We were grateful to Masaharu for helping us figure out a step-free path to the platform. He was a communicative and dependable host who answered our questions in a timely fashion. We recommend staying here if you're using Haneda Airport.