This place is truly a fifteen minute walk from the airport. The directions were quite clear during the day, but even though the walk is completely safe, I would have had more difficulty finding it in the dark (I walked back to the airport at 11 pm to meet my partner who was arriving from elsewhere). The apartment is charming and a shared space. I enjoyed talking to Diogo and his mother, Madelena, very much and would visit again in a heartbeat. The metro is back at the airport —easy access into the heart of Lisbon— and the train station is a 20-25 minute walk —easy access to other places in Portugal, so incredibly convenient and a wonderful experience for a person with my travel sensibilities.