Luis is a great host and was very kind. He brought us coffee and croissants and was v helpful. Unfortunately the location of the apartment was not at all what we expected. It was in a very shabby neighbourhood. When arrived at the train station and walked the 5 min walk to the apt, people were looking at us like they had never seen tourists before. It made us feel a little unsafe, as we were 4 girls on a trip. In fact, our local tour guide advised us not to take the train from Lisbon to the apartment after 9pm, so we booked Ubers. To make matters worse, the key of the building door did not turn properly and both nights when we returned at around midnight / 1am, we spent up to 10 min turning the key and trying to get in the building. It felt unsafe and we were getting really really anxious trying to get in. Although Luis is a great host and the apartment is very close to the train station, the location is not nice at all if you want to experience sintra or Lisbon at their best.