We really enjoyed staying here. The apartment is in a great central location with a nice view of the castle. The apartment was really high quality and luxurious and there were lots of nice touches that made it feel special. The beds were also super comfortable. We really enjoyed coming back to the tranquility after a day out in bustling Lisbon. As you arrive the flat has gated security. There is a bit of street noise at night but I think you would get that anywhere in Lisbon and apartment is on 3rd floor. Highly recommended.