Admittedly, I've only been to the Pita Jungle in North Scottsdale. It's nicer than your average Pita Jungle - feels more like a restaurant/bar (I think they have a full bar!) than a fast food place but offers the amenities of both.
I use Pita Jungle a lot for large office orders and they never disappoint. Orders are always right, service is solid, restaurant is clean. They're quick and great for a healthy lunch bite. The only reason they don't get 5 full stars from me is because they're just not *quite* as yummy as some of the other Pita places in the area, but overall a solid spot for lunch or a quick dinner. I recommend the falafel salad - less calories because there's no Pita - but their Pita is good so dealers choice.