This hotel is one of the less nice ones I stayed at in Japan, though even 'not so nice' in Japan meant a decent level of cleanliness.
This hotel is mostly about location and affordability. I paid less for a single room than in a hostel, and while the hotel is located close to the entertainment / red light district, the noise did not get into the room. Due to said location, the windows have black-out 'curtains' (boards) that can only be opened a little, so the whole room has a slightly dark appearance. I would therefore not recommend this hotel for a long-term stay, but for crashing a night or two, it is perfectly serviceable, safe and affordable.