We had a very nice stay in this flat which is very well-located, about 20 mins walk from Bruxelles-Midi station and right on top of the Grand Place. There was some outside noise but this was as expected and when we were there (Tues-Fri two weeks before Christmas) it was mainly happy people shouting at each other happily, rather than loud music or similar. Stairs up to flat are narrow and three flights, might have been difficult with large cases but again, was fine for us and as expected from the description. And you only have to carry the bags up once! The flat was very clean and comfortable, very nice bathroom and we would definitely stay here again.