That was quite the cork misadventure. Top half sheared off. The neck was quite stuck. Had to hack away at it and when I finally got the cork pushed into the bottle, there was a short geyser that delayed my drinking as I was forced to clean up the sticky mess. Once drunk, it was still quite good for five years old. Getting a cola like sweetness with a light fizz to it. Some alcohol notes seep through at the back of the throat. Some Rohrschach lacing on the glass.
For a beer that is in essence, over 5 years old, it held up remarkably well. No weird off notes or flavors at all.