Although I still give Gatorade props for the crystalline clarity of their new Rain product (it just LOOKS like so quenching!) the Tangerine flavor leaves a lot to be desired.
The very nice, fruity tangerine/orange flavor has an easy and natural taste, but is so diluted that it's more like a scent than a flavor. The characteristic Gatorade "saltiness" that lurks in the background of regular Gatorade is almost entirely missing here (some people may think of that as an advantage.)
Over all, I don't think that the Rain line is going to be a successful product for Gatorade. It won't surprise me if I start seeing it in job lot and dollar stores by this time next year.