
It's only fair to follow up on the original article, given the very small sample size.
While this flavor definitely has the characteristic more-muted sweetness of the stevia/sugar alcohol combination, the bright, slightly tart cherry finish seems to totally mask the stevia's potential "winter green paste" effect.
So, at least for today, I'll informally crown Blue Sky Free Cherry Vanilla Creme as the king of naturally sweetened, sugar-free sodas, and formally recommend it.