This review covers two very different restaurants: Flip Burger and Five Guys.
Flip Burger is located in what I'm told is called the Howell Mill District. As you can see, it's a very hip location and pretty new. As you can see from the sign, it's a burger boutique.
I got the basic Flip Burger and onion rings. The preparation and presentation of the burger are as hip with as the building. The burger itself is fairly modest in size; don't go here to satisfy your carnivorous cravings. But it was quite good. They recommend that burgers be prepared medium; I chickened out and went for medium well. The onion rings were the best part, with a light, fluffy batter. I don't usually dip my rings (hmmm, did I just say that?) but I really enjoyed their mustard sauce.
Five Guys couldn't be more different. It is a mid-size chain with several locations in Atlanta. When I saw them at Lindberg Station today, I knew that I had to try them. This is a guyburger place---all about the food. Their regular burger is two patties. The patties, in true fast food fashion, are thin for fast cooking, but it's a generous burger. You can get it with a variety of toppings at no extra charge; I tried fried onion, mushrooms, mustard, and ketchup. I didn't have my camera with me, unfortunately. The burgers and fries come in bags that are steaming hot to the touch. The fries are piled satisfyingly on top of the burger. One of the advantages of the bag is that you can close it up in between fries to keep them steamy. The burger was very good, the fries were the best I've had in quite some time.