Pros: The apartment is beautiful, in a great location and the owners were very responsive.
Cons: basic equipment missing, for instance a broom, salt and sugar, and most importantly fans, in a 4th-floor apartment in a very hot city (owner did provide us one when we asked for it, otherwise we would have suffocated!)
Overall: The 4th floor is not ideal for families with young children or older folks. Otherwise I’d recommended for young adults wishing to stay near the main attractions of beautiful Lisbon in a stylishly decorated apartment.