The drink itself was quite good.
It lacks the sweetness of the concentrate but that's to be expected.
It takes a whole lot of work to produce a single cup though. The instructions state to use 3 - 4 tablespoons but it's a bit difficult to really measure because there are large cinnamon sticks as well. And at the end, I don't notice a discernable difference from the concentrate.
The biggest problem though is that a single package can only produce 4 cups of chai, while the concentrate (at least the smaller bottle) produces more and is easier to make. Moreover, because of the nature of how it's made, cold chai is not possible/ way more of a hassle than it should be.