Here in southern NH there are unfortunately not a lot of good Japanese places. It is frustrating.
There are a few "supposed" Japanese restaraunts around here.... but almost all of them are run by Chinese people or Korean people, and for some reason the food is just slightly "off" in those places.
In some places... it is mainly American Chinese food called Japanese. As an example, stuff like tempura there is basically an order of "Chinese" deep fired something with the really thick, oily, heavy batter on it.
Probably the best Japanese place near here is called Takumi, in Nashua NH. It has a pretty broad menu and it also has a diverse list of Nihonshu. Most Japanese places in this area do not have this extensive a selection. Of course It has the "requsite" teppanyaki part so common in America...... but we always eat in either the dining area or the sushi bar. In general, the food is really good. There are some Japanese working there, but most of the staff are Chinese it seems. The owner however is Japanese, Toru Oga.
Takumi Japanese Sushi & Hibachi
I find that the better Japanese places (at least around here) seem to be indicated when I see the list of sakes........ more types of sake..... generally better food.
best,
.............john