Carolina's house was perfect for the 4 of us. We loved the location in Alfama, just 200 metres or so from the Miradouro da Senhora do Monte (one of the best viewpoints overlooking Lisbon) and 300 metres from the shopping district of Graca (where we bought fresh pastries early every morning for breakfast and also where we would catch Tram 28 to go downtown). The house itself is exactly as represented on the Airbnb web site -- spacious, clean, comfortable, nicely furnished, and with comfortable beds and lots of hot water on demand. Carolina herself is very friendly and helpful, and was also very responsive to my e-mail queries before arriving. Bottom line... we highly recommend Casa das Monicas and if we are fortunate enough to ever return to Lisbon, we would definitely try to stay here. But book early -- it's favourably priced and very popular. Incidentally, coming from the airport at 10:30 pm when the streets were quiet, we paid only 9.50 euros for a taxi, a pleasant surprise. For getting around the city, we bought 24 hour transportation passes for 6.50 euros which are good for all the metro, buses, and trams in the city. These proved to be very economical. They are available from a little shop in the same shopping district of Graca mentioned above.