We stayed at Casa Alessandra for a week in August and had a wonderful time. It is in a great location - only 10 min drive from Castiglione del Lago - but also very secluded and away from it all. the villa is extremely comfortable, bright and spacious. Although we had some bad weather days, the house was so lovely we didn't mind!
Sandra, the owner, also went above and beyond the call of duty when we had some problems with our car rentals and was always on hand to offer suggestions on where to visit/eat etc.
We were a group of 8 with small children, teenage children and grandmothers and the villa was prefect for all of us.