We had a wonderful stay in Lisbon thanks to Pedro and his father. The apartment is perfectly located in the city center. It's only a footwalk to all the important sights, the next metro station is also only about 3 min away. The neighbourhood itself is really nice with mainly locals around.
The apartment is tastefully furnished and the kitchen is really well equipped. The beds were really comfortable, though for the old house and thin walls it can sometimes get a bit noisy during the night.
Overall, we can unconditionally recommend the apartment. Special mention to our kind host who even picked us up at the Lisbon airport late at night when our flight got delayed.