I am getting to this a bit late as I was there in December.
After strolling around the preserve for several hours I had worked up an appetite. When I think of Wolfgang Puck I think of celebrity chefs restaurant's where I could no way afford to eat. While not being cheap I found this place to be affordable. I was also a little gun shy of a $13 burger having gone to the Burger Bar earlier in the week for a high priced ok burger. My first impression was the bun was a little too heavy/dense. Turns out there is good reason for the choice of bun, my medium burger had plenty of juices dripping from it to soak several of my fires in and did not break down. And speaking of the meat, the flavor was the star of the the hamburger rather than just part of the deal. The only complaint was: I was offered my choice of fries and something else filling but I would have liked the option of some greens or cole slaw.
The service is fast casual where you order at the counter and you are on your own for utensils and filling your drink and they bring you meal out to your table. The building sets up high enough to have a view of the strip and would be a wonderful place to sit on the patio on a spring or fall evening and watch the strip come to life.