All the reviews are right -- both the apartment and the host are amazing! I've stayed at tons of Airbnbs and this experience was one of the best.
Ines was so welcoming and helpful throughout our stay. She is quick to respond, and the book with recommendations (which includes notes from past visitors) is amazingly helpful. I enjoyed chatting with her and learning the history of the building!
The apartment itself is perfect. We were a group of 6 (3 couples) and the large space accommodated our group with no issues. The apartment is beautiful, historic and fantastically located (we walked everywhere). We really loved the terrace/patio and spent a lot of time out there.
If (or really, when :)) we return to Lisbon, I wouldn't dream of staying anywhere else.