My whole family (including my 4 year old) love this. We have it out by the pool every weekend. You can taste the stevia, and I'm not a huge stevia person, but with the lemon flavor, it works.
My only complaint is the packaging. The bag is hard to get your hand in without getting the powder all over you and then when you close the bag, it tends to send a small puff of powder into the air for you to breathe in. I'd love to see this in a shorter/wider bag so I could get my hand in to get the scoop without getting covered in powder. I