Ana's apartment was wonderful. It is exactly as described in her post and very clean. It's located on a busy street, with many restaurants and shops just steps away but is on the backside of the building, so the apartment is very quiet and private. The small patio looks out over a serene courtyard. Communicating with Ana to make check-in arrangements was easy and she was a pleasure to meet in person. Ana even offered to meet us early to store our bags as we arrived several hours before check-in.
On a side note, if you're looking for delicious food while in Porto, we highly recommend Flor Dos Congregados (Portuguese slow-cooked dishes), A Sandeira (hole-in-the-wall cafe with delicious sandwiches) and Belos Aires (the best steak of your life!). All are within walking distance of Ana's apartment.