It's basically sparkling juice, no sweeteners added! I think that's Mom and Dad's favorite part :P The girls just love the taste. (that sounded like a commercial LOL!). Very simple and natural ingredients, and it comes in glass bottles, neato! You can check out the flavors that are available and see all the nutritional facts on their website, izze.com.
Sparking Peach is my favorite flavor (or course!). In the photos Vi and Lib are enjoying Izze Esque Black Raspberry (esque is the lower calorie version), which they both said tasted yummy!
It's available all over the place, but I would say that the best deal I've seen is the bulk size box at Costco.