I've had a few different smoothies at Jamba Juice - the Mango-a-go-go used to be really good but over time, I find it's now just really sweet & not too impressive. The Caribbean passion is the same way. When they introduced the Fit 'N Fruitful smoothies, I gave those a try, to only find myself disappointed. They almost just tasted watery & unappetizing. I haven't had the oatmeal in a while but it used to be a pleasant breakfast.
Since it's hot here 80% of the time, it's nice to get something cold & refreshing but when there are so many competing smoothie places, it's hard to choose Jamba as my place to go.