Huge fan of this particular Banana Republic store. For men, it has the best assortment BY FAR compared to other Pittsburgh locations. Same applies for women, too, with two floor dedicated to women's.
The super-friendly and helpful staff is an added bonus. There's always an associate close by to help find sizes or help you with a fitting room, but they're not pushy at all. Can't find a size? The staff is quick to call around and locate a size for you at other locations or online. I can't remember a time that an employee wasn't helpful in this scenario...and we're here entirely too often.
Overall, if you're into what BR has to offer and you're in the city, this should definitely be your go-to location.