My friend and I are very content with our stay in the apartment.
The shared bathrooms and kitchen were always clean and you barely even noticed other visitors.
The room itself was also clean and the check-in as well as the check-out was easy.
The windows are very thin so you might hear noises from the street but it did not really bother us.
The apartment is very close to a beautiful viewpoint where you can enjoy Lisbon.
We would definiely come back!