The flat is located very close to the metro and just a few minutes walk from the very centre of Lisbon. Vale was super clear with the instructions regarding how to get to the apartment, it is not easy with maps but with her instructions, it went very smoothly (including self-check-in and checkout with door code). Vale was available for our questions and answered always very quickly.
The apartment was very clean and has everything you need. The bathroom is a little small, but it shows from the pictures so it was expected, and it is very functional. The kitchen is in a good state with pans and pots to cook, and enough plates/cutlery for four people.
The area is not noisy at night, and if there is some noise it is completely blocked by the windows which are really good. It could feel a bit weird at night, but it is the same in most of the neighbourhoods in central Lisbon and it depends on what one is used to. It felt safe to us for the whole time.