We felt very comfortable with Ana and Bruno. It is really a beautiful old apartment, central yet quiet with a great view of the Tajo. We were able to sleep with the window open at night. We also found the area very good: there are bus, train and tram within walking distance and a lot of good and cheap restaurants.
We were regularly by train to the beach in Caixas (within one zone) and also to the center of Lisbon you can easily get by bus, train or tram. The historic tram #15 passes by here regularly.