There is no washer and drying rack, which we found deceiving as this was shown in the listing (we always set washer as a required filter and would not have picked this place if we had known that there is no washer - this is the first time that we have seen this kind of inaccuracy on AirBnB and we have been to far over 100 rentals). The laundromat is not at a convenient walking or driving distance. While there is parking directly in front of the door, the space in front of the villa is rented out to tour jeeps so the car is parked in most of the day (and the exhausts from those jeeps comes into the kitchen, even with closed windows). For the location - if you want to take the car, expect to always add at least 30min to your drive since the house is on a one way street across from the Quinta da Regaleira park and it takes minutes 30 minimum to get to Sintra as you have to drive around the hill. The walk into Sintra however is very pleasant and easy (with good weather).
We were greeted in person and were shown the apartment. Check in time was quite flexible. Please note that the house was built in 1850. The humidity in the apartment is very high at 60-80% and there were two dehumidifiers running at all times. They are not super quiet so we turned the one in the bedroom off at night. The bed mattress is very soft and the bed is rather on the small side for two.
The view from the apartment is very nice as you can oversee the garden and the hills in the distance. It's quiet in the living room and the bedroom.
The internet was not high speed, so we ended up using our own cellular data.
We stayed one week and all of our luggage and clothes had a musty smell after (it is an old building).
There were three functional heaters and the apartment could be kept at a comfortable temperature in the evenings.