The apartment is in the middle of Lisbon's night scene. Nevertheless, since it's not on one of the very busy streets and quite high up, it's pretty quiet. The directions to the apartment were flawless, check-in worked as described, the apartment was very clean and the rooms quite comfortable. The Bairro Alto is reachable by foot, tram, bus, and taxi, the area is full of great restaurants, which are quite affordable by Western European standards, and the apartment is sublime. Next time I'm in Lisbon, regardless of whether it will be pleasure or business, I will stay here again.