I went to Coalfire Pizza along with the Windy City Pizza Club. I had read reviews from Chicago Magazine before coming on Sunday night and those reviews were mostly right. The pizza is amazing. The best part: The CRUST! The crust was burnt, but not overly burnt...just right.
At Coalfire, they find the right amount of cheese, and fresh ingredients and put it together so that nothing is over bearing on the taste buds. Not only was the Pizza good, the service was awesome. Our waitress, Amy (I think that was her name) was on top of her game and the owners were nice. The atmosphere, though did not have any TV's, was cool with a lot of sweet artwork.
If I had to change anything, I would not charge extra for fresh mozzarella and probably not let people take out because of the high moisture content of the pizza. You really need to come into Coalfire and experience it first hand out of the oven to get the real experience and of course, great service.