There is no flexibility in the check in or check out (which is stated clearly so if you have a super early flight to Lisbon, know that you will not access the apartment until 3pm) but other than that our stay was great, the views were nice and it's ands a very short walk from the city center, we noticed right away one of the radiators wasnt working and Filipa came up within an hour to replace it. The area itself is pretty busy but the apartment was super quiet.