Ok....my order arrived.
I filled a new blank with cola. It's the 'low' variety since they were out of 'med'. Not sure how that affects flavor, whether it gets stronger as nic goes up or down...
I thought the flavor was right on. Tasted like coke to me, definitely a sweet vape. I don't think I could use it all day, but as an occasional treat it's good. May try mixing it with another flavor eventually, like vanilla or cherry.
I took my time writing this...it's been 10 minutes since I started. Vaping the cola the whole time. The taste is improving, mixing is not necessary but may result in a couple interesting flavors as well as straight coke.
The best description for the taste to me would be....a leftover coke icee stuck in freezer for a day, then left out to melt. Still a strong coke flavor (flat, without the fizz).
Very enjoyable.