We had a great stay at Gorette's place. It is centrally located and makes a good base to explore the city on foot. One of the rooms is overlooking a street used by Tram 28 (no issues with the noise though!) and you also have a view of the Lisbon castle from the apartment. The closest metro station is less than 5 minutes away but you can easily walk anywhere in the centre. The apartment is on a top floor and has got all you need. Gorette and Ben (who helps with the check-in/check-out) have been responsive from the reservation stage until the end of our stay. We would definitely return again.