This is a Nine West outlet store located in the Allen Premium outlets and one of my favorite places to shop. Its very hit or miss (like most outlets). .. I don't think the quality varies from other Nine West stores and I frequently see the same items in the stores.
You can use the 20% off a single item Allen Premium Outlet coupon. They also regularly have sales such as "Buy 1, get 1 50% off," although you can not use a coupon in conjunction with a sale (believe me--I've tried!)