Not well, seriously, like any great hopped up pale ale, it will fall off relatively quickly, I wouldn't age it past 60 days. But you are free to do whatever you want with your beer.
if you had fresh ZD, 2 week old ZD, and 1 month old ZD, you would most likely be able to taste the difference between the fresh and 2 week old ZD. by 1 month, it will taste completely different than fresh ZD. i'm not saying they taste bad, but at 2 weeks or 1+ month old, but you can definitely taste the difference. after 1.5 or 2 months, i wouldn't bother.
Had a 5 week old ZD today. The hop aroma dropped off quite a bit compared to when it was 3 days old. The flavor was still good but the subdued aroma definitely impacted the overall taste. It still beat the pants off a Green Flash Soul Style. It was a 9.5, maybe 9.75. Now it is a 7.5, maybe 8. I gotta crank through the rest of the ZD case by this weekend before it goes tits up. So yeah, don't age this beer.
