In a detailed review of Bulleit Single Barrel Frontier Whiskey, the speaker praises its uncut, 60% ABV (120 proof) quality and shares a personal backstory of how Bulleit changed their perspective on whiskey during the COVID-19 pandemic. Describing the whiskey's profile, they note strong caramel and sugar aromas with hints of vanilla and oak, and an initial taste of sweet maple syrup followed by warming baking spices. Despite some people's reservations about Bulleit, the reviewer appreciates its bold flavors, high proof, and affordability, rating it higher than the standard Bulleit and recommending it for both sipping and cocktails like Manhattans and Old Fashions. The review emphasizes the whiskey's versatility and appeal to those who favor sweet, spicy, and robust spirits.