Jose and Nadia are exceptional hosts and their apartment is located at the very heart of the city! The location is really TOP - right next to the main street of the pedestrian part of Lisbon. It's literally 2 minutes away from the Santa Justa Lift and 3-5 minutes from the Rua Augusta Arch. There are multiple tram and bus lines, as well as a subway station, right next door - literally under a minute's walk.
The apartment itself was also great, with plenty of room for us to chill, sleep and store our belongings and bags for our 10-day trip (of which 6 were in Lisbon). We also had a dedicated shelf in the fridge and in the bathroom cupboard, which was very good. The place itself was very clean and we had full access to the kitchen at all times.
Jose and his partner - Nadia - were so nice to us. They were very friendly, communicative and accommodating, always ready to answer our questions about the city, have some lunch or dinner together, or just sit down and chat :)
All in all, this stay - both in terms of the apartment itself and the overall feel - was a jewel in the crown of the beautiful city of Lisboa. We'd very much recommend it and definitely come back!