We spent 5 days in André's appartement. We never got to see him in person but were welcomed by Sebastiao and in constant contact with Isabel.
The appartment is very nice and has a wonderful view from the terrace. It is also located in a very calm street, so you won't hear a noise at night !
However during our stay we encountered problems with the bathroom piping, causing leaks through one of the walls which emptied the hot water balloon and turned the floor into a paddling pool. Hopefully this is being repared now !
Also, the appartment suffers from major humidity problems. Coming home after a day of visiting, the place feels like a sauna ! Luckily you can air the place out quickly, but during the summer months even this will get complicated.
It is also good to know that the appartment is located on top of a steep hill, although this wasn't a problem for us. It is close to a metro stop and the Alfama and Graca neighbourhood.
All in all, André's appartment may have a few problems right now but I hope they will quickly be fixed (as they were very responsive to our messages) so as to make it the perfect place to stay in Lisbon !