Very cute little place. Its a bit tight but is very immersive as it is in the heart of Alfama. As everyone has alluded to, tram can be loud but didnt bother us too much. Ana and Fatima were helpful and greeted us graciously.
FYI, it is about a 12-15 euro ride via taxi from the airport. The tram gets extremely busy and crowded during the day so it would be near impossible to bring your luggage on the tram.