It's what is following the mangosteen multi-level marketing game.

It does have a high level of anti-oxidents, but not as high as blueberries or black cherries, both of which are easier to find and cheaper.

I haven't seen anything indicating that there have been any (or many) actual studies indicating that it has the 'magical' properties claimed. Reversal of diabetes is one that they're pretty sure is not true. Too bad, though.