Light taste and not too sweet

I was excited to try these coolers, since they offered a lighter calorie option and no sweeteners. The taste is very, very light. It's like drinking soda water with a hint of mango. I found it got less enjoyable the warmer it got, so have it very well cooled or maybe have it on lots of ice. I don't think I will get them again. It was nice to try and my sister said the same. It just didn't wow us.