It's a beautiful, remote location. There's a free shuttle bus to and from Toyohashi station, and ample car parking, but no other public transport.
High on the hill, there are wonderful views, but it's a long climb. The rooms are spacious with a sea view from each one.
The buffet breakfast and dinner is extensive, though always the same. The onsen is clean with several different pools at various temperatures. We enjoyed it every day.
For us, the major negative is that they play tuneless jazz in the restaurant at every meal. They changed to classical for dinner one evening at our request, but back to jazz the next day.
There's nothing to do in the area, but that's fine if you've gone for peace and quiet. There's a very long beach with almost nobody there at this time of year, even though it was quite hot (with a cool wind, however).
Parcheggio gratuito