114 other people have reviewed this place, so I don't think it requires my usual detail.
That said, I think it bears stating why this place takes a 5-star review from me and not a very respectable and quality 4-star review:
When you order a burger here cooked to temperature, they do it exactly right, and the way it is supposed to be. Medium should have a pink center. It did. Medium rare should have a warm red center - it did. I am completely over places that try to sound cute and trendy by offering "pink" and "no pink" as the temperatures on their burgers. That is not cute, it is not helpful - it is a worthless binary scale.
If this place can get it right, in the low light and with all the toppings and add-ons, everyone should be able to do it. Winghart's, for the win.