My biggest concern was the ingredients and without having a package in front of me I did a search and came up with: citric acid, calcium phosphate, salt, maltodextrin, modified corn starch, artificial flavor, ascorbic acid, FD&C red 40 and FD&C blue 1. None of these appear to present any negative effects. Even the liquid flavorings offered for beer contain chemicals for stability purposes which is not required for a dried product such as Kool Aid.
In years past I have used fresh fruit but was a alot of work. One of them blew the airlock off, covering the wall and transerferring the beer off the pulp was at the cost of loosing a good percentage of the batch and even then it still needed more time for the solids to settle out but I bottled anyway. A couple years later a did use some of the extract flavorings. It did not compare to fresh fruit, but did well to adding a subtle flavor if used in limited quantities. This is my goal while also wanting something that would add a little color for appearance purposes. I have tried many things and some of them turning into such a mess, I pitched them out the back door into the grass. My latest idea seems conservative in retrospect.