Overall, the experience with the Heaven Hill 6 Year Old Green Label can be categorized as young, a bit unrefined and lacking in finish. With all that said, I still think it's worth the incredibly budget friendly price of ~$10.
Given, at times, the overwhelming alcohol heat and rye spice on the nose and palate of the Old Grand-Dad 114, it's hard to find much else, needing to dig pretty deep. So in terms of the amount of enjoyment I got out of this bourbon, it was decent/average. The value proposition however is huge.