In all honesty, this place is overrated. My favorite burger of all time is the office burger at Father's Office, so I am compare all burgers to that.
I ordered the Hubert Kueller burger which consists of blue cheese, buffalo meat, and caramelized onions. The blue cheese overpowered the meat, which itself lacked in flavor. My friend ordered the black jack burger and he also said the meat (he had beef) was lacking in flavor.
Combine the fact that the burger costs $20 and tasted eh, I don't recommend eating here.