When we arrived, they had no record of our reservation. I assume someone down the line from Hotels.com dropped the ball relaying the reservation to the hotel. Fortunately, a room was available and they upgraded us to a large room with a fabulous, newly renovated bathroom. Great shower, which is rare anywhere in France, much less rural France.
Staff were friendly and helped with heavy luggage. Elevator goes to the second floor, but not the 3rd floor of larger rooms. Beautiful grounds. Very quiet. Lots of free onsite parking. Downside is that there's nothing in the immediate vicinity, so the only convenient meals are at the hotel.
It's important to have your expectations for the Chateau de Roussan in order. It's a classic Provential chateau that has been restored to something close to its original condition. It is not an over the top luxury version of how, thanks to Downton Abbey, many Americans imagine wealthy Europeans lived 100 years ago.