The buns! The burger buns that is. I love Brown bag, I don't know what it is that makes it different that Five Guys but man I love it. Maybe it's the bun or the mayo, but it's a great burger.
I think that there is something to write home about (or on Yelp about) lol. I mean it's not Swensons, but hey, it's in a great location, decent prices, and free peanuts.
Give it a try if you're in the area!