I have the utmost faith in this company and product, so much that I bought up a bundle of their stock. They make wholesome, healthy smoothies that are a perfect jumpstart alternative over that Red Bull or Monster battery acid. Jamba gives you generous portions at a fair price - typically $3.50 - $5.00 for a standard 24 oz smoothie. It's a good treat without the guilt.
Jamba has the best, most refreshing smoothies I've ever tried. I especially like the ones with the boosts already added.