My sister and I did not get to meet Elsa and Rui, however, their friend Sebastiano kindly collected us from the airport. He then told us of many places to go in Lisbon which was great.
The flat is in a great location as many places are within walking distance, including a metro.
We loved our stay in Lisbon, it is such a beautiful city and the apartment is so cute!
I would recommend staying here!