I like the Vegas Premium Outlet a lot. If they have a store you like, you'll like it. If they don't, you won't. That's the whole thing to outlets I think. If there are stores that you actually like to shop at, you'll be excited to browse through and find things that you like. If you don't like a store, no matter how much you convince yourself to like it because it's so much cheaper, it's not going to happen.
Each time I come here, I really only go for two stores. The Coach Outlet and the Guess Outlet. The Coach Outlet always has a really good selection, including a lot of things from Coach Retail. (Where I live, the Coach Outlets suck).. Also, I always liked Guess Outlet, but I no longer have that near home, so I get excited to come to this one. This Guess Outlet is also pretty big.
The Premium Outlets itself is nice and well maintained. There's also a food court. Overall, if they have a store you like, I would definitely check it out.