G.T.F.O. is a flavorful blend, with dark chocolate and espresso being dominant, with raspberry undertones. The vendor says there's vanilla and caramel in there too. But I only taste the vanilla on the exhale, and the caramel is buried under all of the other flavors (personally, I don't taste it at all). It's a bit intense for an all day vape, but smells fantastic both in the bottle, and once vaped. The first time I vaped it, it reminded me of a dark chocolate raspberry truffle.
I purchased my bottle from a brick and mortar store, where it was already steeped for 3 months. My guess is that for this juice to live up to it's full potential, you'll need to give it time for all of the flavors to develop.