I have given Brown Bag Burger several tries but always leave thinking I was right, it just is not that good. The closest comparison is Five Guys which I so wanted to think was not that good. Five guys is a national chain which originated in Washington, DC. Nothing good ever came from Washington, DC but Social Security and Medicare to my way of thinking with no intent to provoke Conservatives.
The actual burger at Brown Bag is oddly spiced with too much salt and lacks the beefiness of the burger at Five Guys. Both will cost you ten bucks for a burger, fries and soda. Brown Bag at least does not have stacks of potatoes cluttering up the place, or the walls full of self congratulatory reviews, or a sign proclaiming your french fries' hometown. Brown Bag does have a high partition dividing the open kitchen from the sitting area. Thus the room appears small and customers crowd around the counter waiting for their order to be called rather than sitting at a table waiting for it to be delivered. While there are many behind the counter the wait time is particularly long. Not a good design or system.
In the past I have seen Brown Bag nominated as best burger on some list and go once again for enlightenment. I made my last trip there this past Saturday. I was enlightened. It is not on my list of best burgers.