The apartment is vast and centrally located, close to everything in Lisbon. Unfortunately, we didn't read the comments before renting it and were not aware that it was located on top of several nightclubs.
The noise was a big issue as the clubs were open almost every day (except Monday and Tuesday). You can hear the music from the club, the building is vibrating from the bass and people speak loudly/scream outside. This is the only inhabited flat in the building (the rest are offices) for a reason.
I really believe the host should make mention of it in the description as it is a major problem. It was not possible to have a good night of sleep and this negatively impacted our stay. So unless you are a heavy sleeper or plan to go out late at night, I wouldn't recommend this place.