Overrated.
It's a good burger. Service and quality are great, but $30 for a [mediocre] burger, fries and a beer is ridiculous. Having a celebrity chef's name on this place doesn't mean that it's a great burger. Add to the fact that he's known for his french and haute cuisine - means he shouldn't know that much about burgers.
Not bad, but not worth the price. Even for Vegas.
I'll be running to the In-N-Out about a mile away instead.