I've stayed at the Haflhof many times both on holiday with my family and on business trips. Frau Ott & her husband treat you as if you are part of their family. Frau Ott speaks very good English. The hotel, a former farm house, is in a small hamlet consisting of a few houses, a dairy farm and a church on the edge of a forest.
The rooms are nice with en suite shower and TV. The breakfast is substantial and the restaurant is good. The nearby small town of Glonn has half a dozen places where you can dine too.