There's a restaurant on site. WiFi is free in public spaces. Yumoto Kobayashi offers its guests hot springs. Yumoto Kobayashi also features complimentary newspapers in the lobby and a front-desk safe. Self parking is free.
The hotel is a basic Japanese style hotel. It has less than 10 rooms. So early reservation is preferred. The dinner and breakfast are worth to try if you like Japanese foods. The dinner includes about 6 courses. Each course is delicious. The hotel is a little bit far away from Tosu. It can only be reached by car rental or taxi. I have not tried the hot spring so I cannot comment.