Evan Williams (especially the green bottle) is an acquired taste. I acquired it when I was young and poor... Just always be sure to mix it with something with flavor, not water...
However, they do have a single barrel version (about $25 a bottle here in OK) that it is quite drinkable.
All I’ve ever had was their cheapest stuff. Even mixed with something, it was borderline undrinkable. I guess I’ll have to check out their better offerings.