I've tried a few out of curiosity more than anything, sure as heck wouldn't pay a lot of money for it that's for sure.
A friend came back from Ireland with some Irish shine. It was actually surprisingly tasty.
I am not sure if this is an emerging thing, trend, or what... I am not so sure about the idea of white whiskey being common, but I can see it in the context of say after dinner digestif or grappa like stuff. The problem with that is most places and restaurants with that kind of after dinner drinking don't really offer those things. It just doesn't happen here in the USA only in Europe, and I am not so convinced that even trying to markety shine as some sort of grappa will even work.
Or maybe it doesn't need to?