We really had a great stay in Lisbon. One of the reasons is that we really felt home in Joao's apartment!
The communication with Joao was really good. We had the impression he really cared that we had a great stay, as he was easy to reach and flexible to organize our check-in. He also gave us information on all Lisboa must-sees in any way possible (via message, brochures/maps at the flat..). Unfortunately we couldn't finally meet Joao himself, but his father, who was also really kind to do the check-in with us.
The apartment itself is on the top floor of a typical narrow house and in the beginning the street might doesn't look so neat and perfect. Nevertheless this is also a bit the charm of this city and when we entered the apartment the first time we were amazed by the spacious rooms and the beautiful interior. Everything was clean and all we needed was there (towels, bedding, kitchen equipment, etc.)
We also we're happy with the area, as it's not too busy, but still lively. LX factory is a really cool place, which is just 10 mins walk and offers nice shops, restaurants and cafes. Also in the same street as the apartment there a restaurants that were crowded in the evening (although unfortunately we didn't try them). Next big supermarket is also 5 mins walk only. To the city center you can walk, which takes 20-30mins (depending on where you go), but also the tram and bus stations are just around the corner.
As the airport isn't that far away I personally only had the problem that the planes seemed really loud at night. However, I got used to it really fast.
If we come back to Lisbon we will definitely come back to this apartment. Thanks Joao!