Kan's place was a great start to our vacation in Japan. Seemingly new (and very clean) bathroom and super comfy mattresses. Though we never met Kan, we accidentally met some neighbors and they were really warm and welcoming.
It was cozy with two adults, a baby bed and our big backpacking pack. I can't imagine 4 or more adults (with gear) in there but admittedly we are American and aren't as used to small spaces.