OVERRATED.
Can I just leave the review with that one word? We visited Burger Bar because it was in the concourse that connected our hotel to the Luxor, so it was convenient. A friend of mine also spoke very highly of their food, so off we went.
The menu is much like Kuma's, but the quality of the food is much lower. Maybe I've been spoiled here in Chicago, but we have a LOT of good burgers and burger restaurants. Especially ones that make 'signature' or 'specialty' burgers. That said, nothing at Burger Bar was particularly interesting or novel to me.
The food was good, don't get me wrong. It's not like everything tasted gross. I just think that the reputation of this place is more a myth since this place is just a burger restaurant.
The food is (duh) overpriced since this is inside a Vegas casino mall. The drinks were decent and apparently the booze shakes were excellent. Order one of those and tell me what you think.
I'd rather enjoy the buffet at my hotel next time since it's cheaper and offers a larger selection of various foods. Meh.