First trip of the year.
what route: ORD<->SFO
original fare bucket: G
price offered: $694 each way
PCU/UFC? PCU
Where it was offered/accepted: Online
Accept it or deny it? Deny.
Even though both legs of this RT are on a 772 (thus upgrade is from Y to lie-flat C) I wouldn't pay that. In addition, the upgrade price is more than the delta between my G fare and the fare for Z.
Regardless, there are only 2x more people in E+ than open C seats, so odds of a CPU look good.