First of all the flat is really nice, all is very clean, it's well located in the Alfama and very quiet. The only thing is that the stairs are a bit "hard" so i wouldnt recommand it if you are too old and have mobility issues. But otherwise it is really perfect for a nice and cool Lisbon stay and a nice basis to discover this nice city.
Secondly, Sara and Jorge are very nice persons and they took us to some nice places when we were there, this was very appreciated and it was really nice to take time to make us discover some places in Lisbon.
Ps : Sara & Jorge you are still very welcome if you come to Paris.