The rooms are quaint, not modern, and clean. Our room had a bedroom, living room and bathroom. It had amenities such as hair dryer, hot water, etc. We stayed there in September and found the room cold and damp. The owner was very nice and helpful.
I believe we were the only people staying there. It is a remote place and very quiet. We could not find it on the GPS but called the place and the owner came and found us and we followed him back. The only restaurant is up the hill about a kilometre away. Food was very good and we were treated very well at the restaurant but keep in mind it is a local place.
Quinta da Ponte is 300+ years old and we were told it is mainly used on weekends now for weddings. The owner gave us a complete tour. Very interesting as the on site church and house are basically in original condition with the furnishing to go with it.
I'd sum it up to say it is a unique and historical stay but if you don't like unusual places, go somewhere else.