Having a 2010 Southern Tier Choklat, i've had this before, instead of adding funkiness, the age has made this very smooth, it's like sipping chocolate milk, with caramel drizzled on the rim of the glass. Yeah, this beer is a beast at 11.8% and super tasty, watch out, it will kick you in the balls.
I also tried a 2011 Heavy Seas Greater Pumpkin, talk about a beer that completely fell apart with age, there was a big nasty pile of yeast at the bottom of the bottle.. Overall, the spice and pumpkin flavors were pretty non existent, the flavor of oak, alcohol and bourbon were strong, I have heard good things about this beer, I need to find this years version to see how much was missing.