RYO T.
If you're paying on site, bring cash, since the inn only takes cash and there are no ATMs nearby. My room and bathroom showed some age, which you'd expect from an old inn, but I had everything I needed, including a Daikin air conditioner, a shower toilet, and yukata robes. Nothing was inconvenient. The hot spring was just the right temperature, so I ended up soaking for a long time. Breakfast had a variety of ingredients and made me happy from the start of the day.
