All, I was just on a business trip to Atlanta, right downtown at Peachtree Center. Unfortunately, lack of time to get out much, and not having a rental car severely limited my ability to nail down some of the better food I've read about on Chow, but I did happen upon Mello Mushroom Pizza just a bit east of the Peachtree Center.
That was one very, very good pizza. I ordered a small "special," which is the house special with pepperoni, sausage, mushrooms, bell peppers, onions, etc. I asked for it well done and it was perfectly done - super crisp. It's not a Neopolitan style pizza, but I would place the crust somewhere between that of a Neopolitan and a classic New York style thin crust. It rocks.
On the way back to my hotel some homeless guy on the street commented that it "smells good." I gave him a piece and I took one and we stood on the street and ate and both swooned.