We stayed for two weeks in Marta's apartment and loved it. We made it a habit to watch the hustle and bustle on the street from the terraces in the evening, including the back and forth of Tram 28. The apartment is right by the Bica funicular, which makes trips down to Cais do Sodre very easy, and a very cool rooftop bar Park is a few minutes walk away. Comfortable bed with plenty of pillows and an excellent espresso maker. Bring earplugs and a face mask because there's no AC and it's nice to have the windows open (but you probably won't want to have them open at night if you don't have earplugs, as the street noise is loud).