I don't know why it scores only 3.5, but my experience was definitely 4+.
Location is good. Take ten minutes to walk to ritou terminal (ferry) and bus terminal. On the way to these two terminals you will walk the central area(Misakicho), in which there are plenty of restaurants and bars. A convenience store is located opposite to the hotel, and next to it are two restaurants and a massage centre. || The surrounding area is quiet and nice. No much traffic. Lays between the hotel and the central area is a park, a community center and a library. || Facilities are good. Room is quite big and clean. Additional towels and pajamas are available in the main building, where you will also find a Japanese public bath. || Lastly, free airport shuttle bus from and to the hotel, which could save a 1000 yen if the bus schedule suits your schedule.