Business Hotel Kyugetsu is located on the main road in the small coastal town of Tsukumi, Oita, 15 minutes by car from Usuki and 30 minutes from Saiki. It is a five minute walk from the Tsukumi JR station. Free parking.
The room was fairly standard for a budget business hotel, with ensuite bathroom, TV, kettle, etc. Internet was by wi-fi, but my laptop didn't have wi-fi so the manager let me use a lan cable in the lobby.
When I stayed mid week I was the only guest, possibly due to a major chain of buiness hotel opening up in the town recently, but for me the much lower price at Kyugetsu outweighed the convenience and reassurance of a chain. I paid 3,600yen for the small room.
Business Hotel Kyugetsu
Tel: 080 6618 1235