Pedro was a very nice host. He waited for us in the middle of the night, even though it got later and later because our plane was delayed. The apartment is great, exactly like the pictures show, and it's located right in the middle of all the buzz of Bairro Alto. The downsize is that it's very very very noisy. It looks like a small alley, but there are bars and restaurants and the bedroom is just above them, on the first floor. So we had to close all the windows and because of that it got very warm in the apartment (there's no airco...). I had no problem sleeping with earplugs, but my friend had trouble sleeping and eventually ended up on the couch. So be prepared and bring earplugs!
Oh and while you're there: rent a scooter just across the street and explore the outskirts of Lisbon on a scooter. It was such fun!!