We were 4 people and we stayed 3 nights in Barbara's flat. She was not there to welcome us but her friend Felipe did the work well for her!
The flat is in the beginning of the zone called Alfama in Lisboa, in a very nice position with beatiful view of the river from the 4th floor where the flat is (but without lift :( ).
The flat is nice but not so comfortable for 4 people, better only for 2!
The door of the bathroom was broken and we could not close it, so there was not privacy. Many bulbs in the dining room were broken and we had to eat with candles in the night because there was not enough light. Nevertheless we liked our stay there and we can recommend the flat.