This was, hands down, the loveliest airbnb I've ever stayed in. Jun's grandmother was just so sweet. I love how she kept asking me these questions, even though I barely speak three words of Japanese (thank you and hello being the sum total). I kept getting it completely wrong, and we both kept giggling about it. Whoever said she's bossy or whatever, they're obviously the one with the problem because she's absolutely delightful! She made me tea each morning, all setup and ready for me when I woke up, along with sour cherries (I think) to snack on, and then chocolates! Tea again whenever I got back from my excursions, along with some fermented veggies for a snack (I thought they were pickled but Jun said fermented and showed me her culture and explained how it's done; anyway, they were good). Always the snacks and tea!!
When I got there, Jun was at work so despite the language barrier, his grandma got me settled in. The futon was already out, but when I got there she thought I might like a nap (I think) so she set it up and put on the blankets. Eventually she realized I wasn't tired so she brought me matcha ice cream!
When I went for a day trip to Shosenkyo (*highly* recommend, btw), she packed me some snacks for the road. When I got back... More tea! She made sure my teacup was never empty.
Jun himself was also very friendly and helpful. He deciphered the Shosenkyo map and bus schedule for me and helped me figure out which bus stops I wanted. He also provided excellent directions to his house and instructions for the bus from Kofu station. Kofu is a difficult place for the bus, apparently it's a car-designed city. Eventually I ended up walking to and from the train station, mostly because I was running low on cash. Luckily, there's a really good grocery store 10 minutes walk from Jun's house and it accepts credit cards, so I stocked up to stretch my cash for the rest of the trip. That was a lifesaver!
The single only negative I had is that the futon is thinner than I'm used to, even in Japan. It's entirely possible that this is the "normal" thickness and the hostel and Ryokan I stayed at had "cushy" versions so the foreigners don't complain. And I have to admit that it felt like it was good for my back. Just not the most comfortable for my western woman hips ;-)
All in all, a delightful stay. Clean and beautiful house, traditional without being outdated, and the friendliest people you'll ever stay with. 10/10!