I've tried all the flavors, and I like them all. They taste way better than standard protein powder and have a better consistency and overall more nutrients. It's really convenient, especially now that they sell the bulk bags.
My only complaint is that sometimes it is hard to mix up the smoothie in a shaker bottle without little chunks of powder remaining. I started putting the smoothie powder into the shaker bottle by itself (no liquid) and shaking it with the ball to break up/sift the powder, and then adding liquid and shaking again. I've found this makes it smoother with less dry clumps.