Will Guinness benefit from aging?

[DaBills]

I ordered a Guinness Extra Stout Partial Mash kit from AHB. I want to have it tasting good for St. Paddy's day. I generally don't like the stuff but know plenty who do so I'm brewing it. Hopefully I'll like my version better than the commercial one (I'm sure I will). Anyways I'm wondering if I brew it now and let it age if it will taste better or if I should wait a couple months to brew it because it would taste better younger. Let me know what you think.

Thanks