We chose to stay in Antonio's apartment as it was close to the airport, we needed somewhere to stay while waiting for an overnight connection at Lisbon airport. For this, it was absolutely perfect.
Antonio met us at the apartment, showed us the facilities and even helped with some sightseeing suggestions for Lisbon in the afternoon. The apartment is located about 5 minutes walk from the nearest metro station. From there it's one stop to the airport, or you can take a taxi and it's about a 5 minute drive.
The apartment itself was very clean and well presented. Bathroom facilities were shared but I think we were the only people staying that night. The room itself got a bit cold, not too unsurprisingly in December but we were provided with an electric heater which heated the room nicely. The beds were comfortable enough to get a good night's sleep ready for the flight the next day.
Would definitely recommend this room if you're looking for a place to stay close to the airport.