Nice place once one gets in, but I don't recall another AirBnB with as much tedious form-filling and email exchanging required. Had to provide passport number and personal info twice. Had to pay an additional 1 euro local tax online (which another Sintra place didn't require). Even the password required to get the door code was 14 characters with upper and lower case letters, numbers and special characters--had to write it down in order to enter correctly. Once inside, it's quite nice. Only suggestion would be to avoid bedroom one, nearest the door. You won't sleep late because the electric lock buzzes open and the door shuts with a bang as people leave.