Great spot to have quick access to Lisbon. The apartment is very close to a lot of attractions and most things are within walking distance.
With regards to the bar situation, it was not a problem and we arrived on a holiday. Weekdays it is quiet and you will have more sounds from random people walking than the bar.
I will say the space is a bit smaller than initially thought. That said, having 3 grown adults in the space was no problem.
Highly recommend!