I bought a couple of ounces of this a while ago on sale just to try it out. Never got around to it until now.
It has hibiscus, so it’s not surprising that it brews up tart and probably is meant to be served with sugar. At first I got the sense of a pretty normal hibiscus-y fruit tea, meaning that the hibiscus drowns out most of the other potential fruit flavors. However, as I keep drinking this one, the intense almond/amaretto flavor built and built, almost lending a light sweetness or at least a diminishment of the tartness. I enjoy it. I also think it would be an awesome agua di jamaica base.