I was there over the weekend. There was a line for about 20 minutes because there was only one person on the register(you order and pay first). Once we ordered, service was fairly good. Burgers are OK at best. The toppings and sauce were excellent though. Fries and the "warm chips" were average. Considering that it was a "Bobby Flay" resturant, I was a bit dissapointed.
I was there about a week after it opened. My burger was pretty bad (I think it was the BBQ burger). My nieces was pretty good (California? burger). The fries were basic (and not very good) crinkle cut. The sauce for the fries was great. The milk shakes were excellent. Customer service was top notch.
The burgers are fairly small, but decent meat. You can get any of the burgers with beef, chicken or ground turkey (if I remember right).
Hope that helps.