We had a wonderful 5-day stay at Frederico's place. The flat was just as depicted and described in the listing. it was an absolutely beautiful place to stay and was in a great location near public transit, shopping, restaurants and other attractions. Frederico was very communicative and accommodating, confirming a requested early check in and proving tons of great recommendations. I highly recommend and if I visit Lisbon again would return.
I would note it is on the 3rd floor of a winding staircase so something to keep in mind for luggage and/or physical limitations.