We had a perfect 5 night stay at Margarida's flat and we totally loved it (2 adults + 3 children). Location is absolutely the best - in the entrance to Alfama, but close to all mayor attractions in the city center. Almost everything worth seeing is in walking distance.
4 mins walk in Alfama you have very nice resonably priced restaurants and cafes - we used to go there every evening for a glass of wine :)
The flat is equipped with everything you need - REALLY everything starting with 1GB WiFi, very nice-in-touch pillow sheets and finishing with hair conditioners, salt, sugar and dish washing liquid :) Margarida thought about every detail.
We absolutely loved it and totally recommend it! :)