Smart, clean apartment in an excellent location. Located on fifth floor, but elevator worked fine. The street is private, so very quiet and little vehicle traffic. View is outstanding, as you can peek over the adjacent building and see across the bay in two directions. Several restaurants and shops around the corner, and only a ten minute walk into the heart of Lisbon. If you think of Lisbon having a central zone where you would want to stay for easy walking, this is definitely within it.
Our only noticeable concern was a sewer smell coming from the plumbing in the hall bathroom. That seems inherent to old buildings in Alfama, but should be noted. Otherwise our stay was great, and hosts communicated well and responsively.