This is a four-room hotel run by a very kind and friendly man. He plays the sanshin and, if you request a meal in advance (around 2000 yen, if I remember correctly), he will entertain you as you eat.
The building has concrete stairs, and the room, while adequate and pristine and good sized (for Japan) is nothing special. But the dark red tiled bathroom is the largest I have ever seen in Japan! You can enjoy an authentic Japanese bath here. I wish I could have this bathroom everywhere I stay!
You are welcome to drinks in the refrigerator, and you can make a simple continental breakfast. There is a small "super" nearby, and around 30 Soaplands, so you can see an important part of Japanese male culture. It is right near the 3 bus line (which, sadly, runs very irregularly), an authentic sanshin shop (run by an elderly master of Okinawan karate) and is easy walking distance to the Naha pier (ferries to Kagoshima), the Tsushushima museum, a Taoist temple and a Chinese-style garden which dates back 70 years. You can go up on the roof for a view, and you may be able to see the
From the postcards pinned up on the wall to the books with extensive entries from Japanese patrons, I would say that the Japanese love this place!
If you can speak even a little bit of Japanese, I recommend this place. The only negative is that the check in is at 4 PM.