I agree about Chateau Du Surreau. The price is very expensive but the experience is memorable. I was a guest of friends who had their 25th anniversary there and booked 8 rooms. They even supplied electricity by the pool (with extension cords hidden in the brush) so that we could play games on my laptop by the pool. Each room is exquisite, service is extrordinary, and the food and wine list are very special.
It certainly a "lifestyles of the rich and famous" place.