This juice tastes like a creamy sherbert for sure, though I'm not sure I'd call it "rainbow" so much as "citrus." It has a very strong flavor of orange, but a sweet lime is present as well. I've realized I prefer flavors with a "cream" flavor, and this juice 100% nails that! My only complaint is that this short plastic bottle is full to the top, the dropper top is very cheap (I had to adjust it after accidentally bending the dropper sideways from the rubber plunger), and I spilled it because of these factors when first using the juice. Packaging isn't everything, but it is something. I suspect that most people might find this a little too sweet to be their ADV, but I happen to like that kind of thing. Will purchase again, as I'm sure I'll want more when it's gone.