I just love Jamba Juice! I first had one of their smoothies in San Francisco many years ago, and was so upset they weren't in New York. When the first one appeared, I was delighted!
My favorite smoothies are the Berry Lime Sublime and the Mango - both with sorbet instead of dairy as the base. I usually add one of their boosts so I feel vitamized, and healthy, a fantastic summer treat! They seem pretty organized, too - place your order, it's prepared in order, and even when crowded, they seem to get your order prepared correctly.