This was a decent place to stay! There was minimal communication between guest and host which some people might prefer.
Pros:
Good location (close to Ueno Park)
Has pretty much everything you need Free sandwich and snack in mornings was sweet
Bed was clean and comfortable enough
Trash is collected very often (just make sure you understand how the system works when Hisao tells you)
Cons:
Could be cleaner (esp. bathroom and cups). It smelt slightly of wet socks until I ventilated the place.
No hand soap but there is shampoo/conditioner/body wash/face wash)
Sink and bathtub drains are a little blocked so water takes a while to drain away
Tips:
If you're going in the colder months and don't want to hang your laundry to dry there's a good cheap coin laundry on the way to Uguisudani Station that has a dryer.
If you have trouble finding the place look for the vending machine with the kendo figure on it.