We had a really lovely stay, Cristina was very friendly and helpful. She was there on arrival, talked to us about the area and gave us a map. She was also happy to book a taxi for us to the airport. The apartment is really nice, just be aware that communal spaces are shared with other guests. The location is great, a short walk to the shop and the metro stations (it's not smack bang in the centre but we preferred that). Lisbon is hilly with cobbles so bring good shoes! Great place, we would recommend it.