We were very happy with our stay and would definitely stay here again.
Strengths: Helena is a wonderful host, very responsive and went beyond expectations to accommodate us. The apartment was more spacious than expected and as others have mentioned, the view from the full-length windows and small balcony is one of the best in the city. Location is excellent with quick access to a city elevator which came in very handy getting up the hill after walking all day. A grocery store and restaurants/coffee shops are within a couple of minutes walking. A washer and dryer are in the apartment unit.
We first visited the Lagos area for a few days before driving a rental car to Lisbon. We expected to be able to drive directly to the apartment to unload luggage, but the street is accessible only to residents and cabs. Because of private streets and narrow winding one-way streets, driving a car in Lisbon is not a good idea. Street noise on the bedroom side of the apartment can be loud, but closing the high-quality windows really helped.