We had a bit of trouble finding the place, thanks to our confused TomTom and the very old streets around the neighborhood, but once we arrived, our stay was fantastic. The apartment is very well located in Porto! We managed to find free street parking immediately in front of the apartment door so we walked everywhere for the 4 days we were in town.
The apartment is as described and has everything you might need, though to be honest, once we ate breakfast, we were out of the house all day and night!
The apartment is in the middle of an old grouping of buildings so the bedrooms don't have windows, but they managed to stay cold even during our hot summer nights because of the very thick stone walls. There is a window in the bathroom and double doors to a small patio area that's shaded so there was plenty of fresh air.
As everyone else noted, Teresa was so sweet and helpful, and there is a small market on the ground floor when you're out of the apartment that the whole family owns (I believe).
All in all, I would HIGHLY recommend this apartment!!