Ideal for 2 people, although we just about managed with 3. Really good location a short walk from Higashi-Nakano station on the JR line, we used our JR pass for virtually all the travel we needed to do. Thoughtful touch having some cold lemonade waiting in the fridge as we arrived on a hot afternoon. Got some great tips from the host William, who also went out of his way to deliver us a couple of adapters when we ran short. Only thing we found lacking was a separate basin, if you have to brush or shave you need to use the showering facilities - however it wasn’t a big deal working around this. A second key would have also been useful but again we worked around this.