Fantastic location - a few minutes to the train station (and no, you don’t hear a thing) - 45m commute to Lisboa by train. great location to explore Sintra including a nice stroll by the main street (beautiful for an evening stroll, about 10-15m max to get to the historic city centre. Appt is as advertised, everything you need is there and quite spacious for 4 or 6 (sofa bed), super clean and modern. Pedro was there to great us and the company offices are right next door so if you need anything they are a knock away. Highly recommend as a jumping point to all the historic sites in and around Sintra including Lisboa and Estoril/Cascais (easier by car for these locations).
Tip: you can take the tour buses to go to the different sites but we opted to rent a private operator (ex-Uber driver, many available by the train station) to move around all the locations and he was super informative and always picked us up at the exact time to take us to the next stop - pay at the end obviously! :))