Bumping my rating up from 2 to 3 stars, as I've been a few more times since I wrote the review below and have definitely experienced better service. Unfortunately, the 2 or 3 smoothies I always order still vary drastically in flavor and consistency, especially my new favorite, the Berry Upbeet.
I've been to more than a few Jamba Juices over the years, including ones that I patronized several times thanks to close proximity to my home or, especially, work and I don't recall having such an unpredictable product.