Location, location, location! The apartment was in the middle of everything! I have never been to Lisbon before, but I don't believe its possible to be in a better location! Close to everything, restaurants, bars, cafés.... Great small streets and alleys with old nice houses. Just as you want it to be like!
The food in the neighborhood was great and thanks to the stairs up to the floor where the apartment was, we burned some extra calories so we could eat and drink with good conscious. ;-)
I highly recommend this place, as long as you are okay with the walking up the stairs (old people may not be the best visitors) ;-)