We thought Priscilia's place was great for what we needed. The location is right at the centre and very close to public transport, restaurants, bars etc. but this does mean, as others have said, it is very loud at night.
The apartment had everything we needed for our stay and Priscilia was very quick to reply to our messages and questions. Check in was really easy. It is on the 3rd floor and the stairs up to it are very steep - definitely something to think about if you're planning on staying here!
Lovely stay in Lisbon and we would totally recommend Priscilias place :).