It really is a beautiful apartment. Very clean, very well equipped, and very well located. We were with 2 persons (my wife and me) and for us there was a great amount of space. The bed was very comfortable too.
Juan is a dedicated host. He was there to receive us, all tough it was Saturday evening 22h. He gave us a map together with advice. When there was a problem with the WiFi he did every effort to fix it, and even brought some pastries to make up ;-). He made a reservation at a good Fado & Food restaurant Povo Lisboa.
The fun starts immediately when you walk out of the apartment, you're in the middle of Alfama, so...
We had a great time!