Definitely one of the better burgers I've had in my life. This place is rather popular, so expect a bit of a wait (which you can skip if you have one of the top tier TR memberships), but it's worth it.
We got two burgers and shared fries, which came out to about $50 total before tip with two iced teas. So it's definitely pricey. I wouldn't say I would go back since the price is definitely up there - it's right on the fringe of not being worth the asking price - but I can totally understand the price considering that it's a famous chef's restaurant and the food is very good.
The service was good, but also prepare for a bit of waiting there since they seem just a smidge understaffed with one server working a rather large section. Also, all food is made to order, so there is a bit of an acceptable wait for fresh food.