Susana's flat is wonderful and she's a great host. The flat itself is in a terrific location in the city by Castelo do San Jorge, with a beautiful view over the city to the water, and it's got great charm. Two of us stayed very comfortably for four days. It was a perfect home base for us to explore Lisbon and the surrounding areas. Moreover, Susana was really friendly and helpful, and always quick to respond. Can't recommend enough! (One note: The flat is at the top of a hill, which makes for a great view, but be prepared to walk up some rather steep inclines when returning to the apartment for the evening. We didn't find this to be a problem at all, but just be prepared with good walking shoes!)