I inherited the Craftsman grinder jig version from my dad. It was basically unused. I also inherited an ancient Craftsman electrical drill sharpener from my father-in-law. I'm not totally a fan of either one of them, but the electric sharpener seems to work OK on smaller size conventional bits. It's quick and easy. The jig is more useful for larger, conventionally pointed bits. It seems so many of my bits have unusual points on them these days, I'm not using either one of them much at all.
-Ed
-Ed