We had a lovely stay at Bárbara’s apartment. I didn't get a chance to meet her in person but she was a great, communicative host who offered wonderful tips for the city and great places to eat! While her place is on the top floor, the stairs aren't that bad and the view from her balcony overlooks all of Lisbon and is quiet beautiful. The apartment itself is no frills but comfortable for two people and within walking distance to the main squares.