I think my expectations were off, as I had read in a few places that this was "close" to whiskey, or even as listed on this site as an alternative to bourbon. In a word, it is not, or at least certainly not for a bourbon-forward drink. I picked up a watery thinness, a nice bitterness and root flavors (the raisins and wort definitely come through as well), and the smokiness is nice. That said, this is something that must be mixed, and in a mocktail I found it couldn't really be the predominant flavor like I wanted. I did find it was good when used as follows:
1/2 oz shrub
1 oz gnista
2 oz Wilfred's
Shaken over ice, then strained and topped with 1 oz sparkling water, garnished with a twist of lemon peel.
So, it works as a layer with other bitter/acidic/sweet elements, but doesn't work to stand alone; that's my white whale in the NA world!