Sara - from a distance by email, and Maria - on the ground were great hosts and went out of their way to get us set up in the apartment and resolve an issue that came up and required Maria to come over to the apartment again. The apartment is very comfortable and a nice space to be in - simply and stylishly decorated and spacious. It's very quiet inside and it's on the 6th floor with lots of floor-length windows that open so it has a nice outlook across the large common courtyard. A lovely place.
A couple of things to note. The quietness inside is partly because the apartment is soundproofed against air traffic noise - when you do have the doors/windows open you get planes close overhead as they come into the Lisbon airport which is in the north of the city. The location of the apartment is reasonable for transport links but it's not an especially inspiring neighbourhood - it felt safe but not at all interesting.