26.10.20Great location! 17 min walk from Yakushima speed boat ferry, 22 for the Sakurajima ferry entrance, about 15 to the main Tenmonkan area (which has malls, restaurants, and other activities like karaoke).
I stayed in a single room instead of the capsule hotel portion. It's definitely on the smaller and older end but is still good. Has a mini fridge, drawers, small desk, and whatever else you need. Good amenities, tooth brush, towels, and other toiletries provided.
What I didn't really like is that between 10-3pm they clean out the room and you can't enter during those times. But if you are going to be out and about exploring for the whole day, then it's manageable.