First thing first, awesome location, just across the road from the train/bus station (less than 2 min walk). I book the slightly bigger single dormitory room which I would recommend. So you got some leg room to stand and move around.
Now for the negatives, reception counter is close between 10-3pm!! Even if you are 10 min before 3pm, they would still not check you in until 3pm! Which I thought was pretty ridiculous!
Second negative, the stairs to the reception and hostel. They have sign saying staff is more than happy to help carry heavy luggage but since reception is close between 10-3pm, that sign is pretty much redundant!! So to get someone to help you carry heavy luggage, I would recommend to book somewhere else.
Third negative, well it more neutral, it the very very simple breakfast provided. Basically bread and coffee that's it. It first come first serve. So be quick. I did saw some boil eggs, but I think those came later.
Overall, good location, but service was under par compare to how other Japanese services are.