This was a disappointing stay. The apartment is located in a fabulous location albeit difficult to find if you are traveling by foot from the train station. That's pretty much the positive comment I will say. The apartment is poorly appointed. The furniture is uncomfortable and dated. The pictures do not tell the full story. The bedroom with the two beds had a smell that was not pleasant. The apartment didn't have simple things provided that I would expect from a AirBnb such a drinking glasses, coffee, sugar and courtesy bottle of water.
The property is a conversion of a space that may have been some sort of storage area or basement of the building. It is bottom floor next to the building's washer and dryer that is used for staff. The noise wasn't an issue but just felt odd descending to the bottom floor wear staff were working. Sintra itself is a wonderful town with so much to see, I just wouldn't stay here again.