I think this is the best airbnb we have stayed in so far. The apartment itself is of a very good standard and the views over the city are stunning. It is located on a quiet street with some great bakeries, cafes, a deli, supermarkets, pharmacies, restaurants etc within a few minutes walk. The beautiful local park is a five to ten minute walk away.
The city centre is a 25 to 30 minute walk away. The Time out market (which was excellent) is a 20 minute walk away. The district of Principe Real, where a lot of great restaurants and bars are located, is also a 20 minute walk away. There is a tram stop at the end of the street from the apartment and taxi's are very cheap.
Martin is a proper host and made check in very easy. He also organised a tuk tuk ride, a day trip to Sintra & a transfer to the airport for us. Also one day I managed to lock myself out of the apartment, which he sorted out with no fuss.
I would definitely stay in the apartment again.