I just purchased the Thirsti and am very impressed with the ease of operation and the delicious taste of the end product.  I love the watermelon flavor in particular.  I just placed an order for some others including passion fruit, pineapple and cherry.  I’m also looking forward to new flavors.  Hope they include pomegranate and cranberry!  What about cucumber mint? Green tea?   Possibilities are endless!  Come on Ninja!