We had a great stay in Castello di Velona. I traveled with my dog, the castle has wide gardens for dog walk. We had the room with garden and view on Val d'Orcia, the view is breathtaking and room is big.
The massages are superb, the spa and pools are really enjoyable, it's relaxing to watch the vineyard while enjoying the warm thermal waters.
Breakfast is high quality.
For dinner, the restaurant is ridiculously expensive, they charge Michelin star prices but are far from it: good food but not exceptional if you are use to European standards and consider the price, and windows of the restaurant are dirty (which is a shame with such a view). Montalcino is only 10-15 min drive.
Staff is really nice and helping.