I've had worse. I've definitely had better. This is one of those "fun" shots you have with friends just to see their reactions. It's really not that bad...if you like licorice...with a little kick. I used Molinari and Alma del Jaguar Reposado.
Whoever came up with this concoction should receive a lifetime ban from the bartender's guild. Don't do it. Just don't. I already took the bullet, so you don't have to.