Maria's house is a really nice and authentic place. The house is only 10-15 minutes walking from the National Palace of Sintra (centre of Sintra) and add 5 more minutes to walk to the Quinta da Regaleira. We left our car at the church near the house and took a bus to see the Palácio da Pena and the Palácio de Monserrate. We also enjoyed walking to the next village where there were some local restaurants. Maria and John are very friendly and interesting people. The house offers more then enough privacy for the guests.
We would definitely stay here again.