We had an excellent stay at Sergio's. The flat is bright, the views great, the decoration unique, the bed comfortable and the amenities all there. The big plus was the little terrasse. The area is an excellent starting point for anything in Lisbon (or Cascais/Bélem via the nearby Cais do Sodre train station). On the downside, the area can get quite noisy in the week-ends. It was not a problem for us though, as being in November, we could shut the sound-proof windows/doors. Cristina was very helpful, everything went very smoothly!