I highly recommend Silvia's place. If you go to Sintra, there is no doubt that you should stay exactly there. Silvia was one of the best hosts I have ever had. She has a very warm, nice and open personality. She helped me a lot with a lot of tips where to go, what to see and even where to eat and what to take in all the mentioned restaurants. She was easily reachable by whats app if you need some help. As the next stop of my trip was to Porto, she gave some tips and recommendations for Porto as well. Place is very close to Portela de Sintra train station, next to flat there are a lot of markets. Centre of Sintra is easily reachable by feet and you can see a lot by walking. Area seemed very safe. In the flat you have all you need and even more. Although I was eating outside, kitchen was very well equipped. Thanks, Silvia, for being such an amazing host! :)