Scottsdale Fashion Square is a freaking massive mall with tons of high end shopping. Barney's, Nieman Marcus. Tiffany, Jimmy Choo. On the flip side, there are also lots of affordable shopping destinations in this mall such as H&M and Forever 21.
The layout of the mall totally sucks, it's hard to find anything you are looking for but fun to wander with no destination in mind. I liked the food court and palm court areas. This mall has a ton of dining options, from the quick walk-by snack to an elegant sit-down meal.