We stayed 3 nights at Marias annex and really enjoyed her beautiful place. Communication with her is easy, fast and uncomplicated. The breakfast she made for us was absolutely lovely. There were no problems with the check-in or check-out since Maria and her son live in the main house. Her dogs are definitely another highlight - they are friendly, well behaved and love to get petted.
With a car you can get to Sintra or Lisbon - you can easily park the car in the streets. WiFi didn't work well, but that wasn't a problem for us.
We would definitely recommend her place. Thank you very much! :-)