I haven't tried all the products that some of these places are making, but I'm impressed with what I've read, at the very least.
One of the most interesting things they make is what turns out to be a version of German bierschnaaps, described thusly (from their website): "We start with Lakefront's Pumpkin Lager -based on a recipe from Thomas Jefferson! It's made with real Pumpkin and Lakefront Brewery makes the only pumpkin lager in existence. Carefully distilled in our pot still, we then aged it in used Bourbon Barrels. This aging mellows the spirit which is then bottled at 90 proof."
Corn-based Vodka, which I thought was called 'moonshine' but hey, I'm not gonna get all snooty about what's what. Actually I recall having an email conversation w/some hounds about a search for "what would bourbon taste like w/out the wood?" and I was wondering if it'd be close to this but, based on the description, I'm guessing not exactly. We were curious to taste the corniness without the wood, this sounds like, well, vodka. Good vodka, but vodka.