We enjoyed our stay at Rui's place. The location was very central allowing us to walk to most parts of Lisbon and although we didn't use public transportation, one of the main hubs was a block away. As advertised, the view was fabulous. We had a small glitch when checking in since we didn't receive the check-in information but once we made contact with Rui, communication was fine for the rest of the stay. I would recommend a stay at his flat.