We (couple + baby) had a great time with the two friendliest sisters Filipa and Maria. The rooms were very clean, and the ladies do everything to make you feel at home. Filipa even provided us with an heater on gas, because she worried about the baby. It's only 25 min. drive to Lisbon, and 10 min. to Sintra, but still very quiet. Luckily we came by car, restaurants are not within walking distance. At least, not with a baby.
I would recommend it to any friend traveling to the Lisbon area!
Thank you again Filipa and Maria.