Ricardo was easy to communicate with and he arranged for a friend of him to meet us at check-in, which worked out very well.
The windmill is just as described in the pictures: picturesque and dreamy, and a very peaceful place to stay. It is a good home base to visit Sintra national park and the historic sites it contains. As opposed to the overcrowded Sintra town, you will find no tourists here, which is a true blessing, especially if you visit Sintra in the high season. We'd recommend renting a car, or bicycles to get around.
We visited the windmill in March, and it was quite cold there. The windmill is not a modern building, so warming it up took a while. Ricardo provided us with a powerful gas heater that was very effective. We didn't have much success with the fire place, as smoke kept coming into the room even after the fire had been going for quite some time. Use the gas heater instead.
We'd recommend staying here, but note that the two bedrooms have no doors; they are separated by a curtain only, which gives little privacy.