Arizona mills mall is one of those hit and miss places. Sometimes you find a great deal on just what you're looking for, sometimes you find something you didn't know you needed on sale, and sometimes there's nothing for you. Dubbed an outlet mall by most locals, you will find normal retail and full priced kiosk vendors mixed in with outlet shops like neimann marcus, jc penny, sears appliance, and burlington coat factory.
The outlet shops will usually save you a good 30-50% over retail cost, but sometimes less. I don't shop here often since it is about 10-15 miles from Central Phoenix; where I hail from, and I usually end up spending more than I prefer.
Be sure to make this a destination for all you discount and penny pinching shoppers.
Happy Shopping!