I used to wonder what Old Grand-Dad's pipe tobacco was like. I now know because this is the very same blend under another name. It consists of ribbon cut brown and black cavendish, the former providing the mildest of bread and honey notes, while the latter provides a slight hint of vanilla. The Kentucky bourbon used is a quality liquor, and is mild to medium in flavor with the slightest sour hit. Burns well and even, but perhaps not too cooley for a fast puffer. It should be sipped for full enjoyment as you would any bourbon you'd stock in your home. Not overly sweet, so it does well for a repeat smoke, and the room note is very pleasant.
That said, back in the day I did try Old Grand Dad tobacco once, because I used to drink the whiskey. Being used to premium blends, I found the tobacco horrid. I recently tried some Sutliffe's Top Shelf, it was ok for a novelty, a couple of bowls, but I have since dumped it in the trash. I'm good with a little black cav as a condiment to give a neutral Va a better room note and a bit of added taste, but those flavor-soaked aros are just not my cup of smoke.