António's place was a great place to stay as a single, female traveller. It was my first time travelling alone, and I felt completely safe. The room was beautiful, with high ceilings and a huge window that opened up for a wonderful breeze and a nice view of the street. The bathrooms were good. The kitchen has a gorgeous view of the water. Check-in was very easy, and I was provided with three keys (my room, the front door of the apartment, and the door to the building). It was very well located to walk downtown and explore the beauty and history of Lisbon.