My friends and I just spent a wonderful wkd in Lisbon and Mafalda's apartment was the perfect base. It was so comfortable and clean and the location within the Castelo was just perfect. So beautiful and quaint. It was such a pleasure to stay there.
Also Mafalda was really helpful. She sent us loads of great information in advance of our arrival and was there to meet us and show us around.
I would definitely recommend this apartment to others but my only one (very minor) issue might be the size of the shower room. It was ok for my friends and I as we're pretty small but anyone a little bigger might find it a little awkward. Other than that the apartment was perfect.