We use to come to Lisbon, and we know that Bairo Alto can be noisy, but at this level!!! NO!!!
Even if RentPortugal was very kind by message and we don't like to give bad reviews, it was nightmare to sleep there because of the noise.
It was VERY VERY VERY NOISY. Drunk people were crying all through the night, trying to break the door down the building... If you are youngs and go to enjoy night life you may be at your place, but if you are a family we don't recommend you at all this place, you and your family will pass bad nights.
Going to grab the keys and put them back in a keybox in another street (70m) is not so confortable but it's not what disturb us really.
Otherwise all else was ok.