One of the best outlet malls I've ever been to in the country, and I've been to a lot. They have your typical designer outlet stores (Coach, Juicy, True Religion, Ralph Lauren, etc), but they also have specialty stores and outlets that are very hard to find (Burberry, Dooney and Bourke).
This is definitely s must stop in Vegas. It's close to the strip, but far enough that you're out of the hustle and bustle of the strip. My advice would be to hit it up on a weekday as the weekends are so crowded some of the parking garages are full by 11:00 am.