We had a fantastic stay in Danielle's apartment. It is perfectly located : Tram 28E is just down the apartment ! It's a big flat very well equipped and the person who welcomed us directly in the apartment was lovely ! He took the time to explain to us plenty of things about Lisbon and the neighborhood. We even had a bottle of wine and water offered upon arrival ! Everything was perfect !
Just think about taking ear plugs with you if you are sensitive to noise as apartments in Lisbon are very old buildings and you can therefore hear noises from your upstairs neighbours, but this is something happening everywhere in Lisbon !
I would definitively recommend this apartment !