While I live in N-CLT, whenever I am back in S-CLT and in need of a healthy and quick lunch I will head to Extreme Pita. This review is based on two visits in one week.
Atmosphere - Crazy lunch crowd, Subway style ordering line, occasionally overwhelmed appearing owner, and nervous yet friendly staff
Food -On both of my visits, I had the Grilled Chicken which is one of their "Freestyle Pitas". For the purpose of healthiness, I opted not to have my vegetables grilled or the pita covered in one of their many sauces. I like that they have all these choices. My meal(s) was completed w/ pita chips and an ice tea. The chicken was good as it was not overly "preserved tasting" (i.e. it did not taste like ham from all the added sodium). The vegetables were fresh and they even offer feta cheese as an option (the healthiest of the cheeses...IMHO). The pita chips were decent. The downside to the meal was the substitute sweetener. The only one available is Splenda for which I am not a fan.
Service - Busy, short, but still friendly. Note that at lunch time it can be so hectic that you will need to act quickly with your order.
Overall - Extreme Pita is a healthy alternative to regular fast food and I prefer it over Pita Pit.