BIB, 4 years, 100 proof. Tasted neat. Nose is sweet and baking spice, pepper, and a wiff of ethanol. Light copper color and coating legs in the glass. In the mouth, sweet, burnt sugar and vanilla oak. Coating mouthfeel. Touch of ethanol as it heads into a spicy grassy finish. Fairly long, tingling mint mouthfeel. It's not an overly complex bourbon, but a step up from Benchmark #8. At the price this is a really servicable quality bourbon at a higher proof point for mixing. The Benchmark Single Barrel 95 proof (4yrs?) is more interesting with a developed oak flavor--it's rounder, less ethanol, and more mature. That surprised me tasting these side by side--thought I'd prefer the BIB. The Single is $5 more than the BIB, but... It's a little better to sip.