I received a couple 14 gram sample packets and here are my reviews:
FLAVOR: Both the "Apple Ecstasy" and the "Strawberry Kiwi" tasted surprisingly good. Neither was so strong that I have concerns about getting sick of it before finishing a jug.
MIXABILITY: Instant and complete. A very nice feature.
OVERALL: I'd buy this product. The exotic flavors make for a nice change without being gimmicky.