Very charming little apartment!
I was in Lisbon for a conference at the Museu do Oriente, and this was a very short walk away (actually shorter than Google Maps thinks, as it doesn't seem to know about the walking tunnel under the train tracks). It's also just a few steps around from the touristy area LX Factory. Marta arranged someone to pick me up at the airport for a fair price, and was quick to answer my questions.