We really enjoyed staying here and would happily book Sarah & Pedro's apartment again. We also arranged for transport back to the airport at the end of our stay, and Sarah couldn't have been more helpful or accommodating, despite us throwing some last-minute problems at her.
We did have a couple of issues with the place (blind not closing properly and bathroom door not closing) but Pedro came to the apartment the following day and fixed the problems.
We've stayed in quite a few Aribnb places in Lisbon over the past few years, and this is probably the only one we'd return to.
The location is in a renovated building on a quiet side street, and is pretty much right in the centre of Lisbon.
Tip to future visitors: The apartment is on a street which is lower than the surrounding streets. The easiest way to get there - particularly with luggage/babies - is to take the metro to Parque; I think there's only one exit from this station, so when you come out you should cross the street, turn left and walk up the hill for about 50m until you come to a car park (Estacionamento Maria Cristina): go inside and follow the roadway downwards, and then out again - the apartment is about 100m to your right.