I was in the Charlotte airport between flights and stopped at Sbarro by gate C14. Just to echo what the others said, don't expect anything great here. I got an edible slice of pizza with a crunchy, cracker-like crust. I suppose it was their version of a thin crust. I had a salad with it for about 8 bucks. The salad was coated in oil and vinegar dressing.
The pasta dishes did not look good, the marinara sauce looked thin.
Wasn't much different than most Sbarro airport fare.