I saved a few bottles of the Berlinergyle from a while back and cracked one today just for the heck of it. Overall, it's aged well and continued to develop over time. It certainly has not faded.
Appearance: Very light straw and a little cloudy with a thick head that fades quickly.
Aroma: Strong lactic sourness and slightly sweet. Cooked stone fruit and floral notes. It's sharp but not unpleasant.
Flavor: Not as strong as the aroma leads me to believe but still noticeable lemonade sourness. No detectable hops and almost no maltiness but there's a little graininess in the tail. Citrus fruit dominates with an occasional chemical note in the tail but I can't quite place it, maybe a little rubber so probably a few off phenols in there still.
Mouthfeel: Quite light but it does stick a little to the tongue. Lively carbonation dances on the tongue.
Finish: Medium finish which is intensely lemony especially on the lips and tongue.
Overall: Glad this has lasted. I might bring a bottle to a small homebrew contest next week. Probably won't appeal to most but I quite like it.