We stayed there for 3 nights in June 2012, in rooms Rose & Jaune.
It was a great place to stay and a good base to visit the Loire Valley.
Corinne was very friendly and helpful, and the rooms were beautiful. The breakfast in the lovely "cellars" was superb, and we loved having happy hours on our huge balcony, overlooking the countryside.
Montrichard was only a few minutes drive, and had some good restaurants.
We can thoroughly recommend Le Clos du Haute Villiers, and would definately stay again.