Of the dozens of airbnb places we have rented this is clearly in the top few. The location is amazing and in the center of everything, yet it is quiet at night. It was perfect for our family of four with two teenage boys who each got their own separate small bedroom. Communication was excellent and the informative house manual answered all our questions. Laura, who met us at the apartment with the keys, was helpful and energetic, later texting restaurant recommendations and instructions on traveling by train to Porto. Only downside I could possibly see is that the 4th floor walk up may be a bit much for some but it provided us with a light workout.