Paolo's place has a good location at the old quarter, almost Bairro Alto. It's easy to get there from the airport and a good short distance for any city stroll.
Paulo was there to greet us at the check in, which was great because he shared some good recommendations regarding places to visit and spots for dinner.
Morning sun will greet you from the big windows, grocery store around the corner will provide you with fresh orange juice and once you get back from an active day of exploring the city the best thing will become the big and firm bed. The apartment is quiet, only noise will be the birds in the morning. There is a doorman which means the whole unit is super safe and you can also ask him advice about the building and Lisbon.
We spent a week in Lisbon and in Paulo's apartment and loved it, definetly recommend it for other travelers.