I reckon about 14 minutes after it's released.

Bonus points are awarded for guessing which user it will be and whether they go for the "this is the best album of the millennium" route or "this is shite, total let-down, Kevin Shields owes me money personally for the disappointment I'm feeling right now".
I mean, sure, you can throw your money away by guessing that it'll be somewhere in the middle, I'm just trying to run an honest business.