UA ORD-PVG 1/19
$800 at online check-in & at the airport. Offer declined. Switched to refurbed 772 at T24; flight about 1/3 empty across all cabins including the new premium plus. This wasn't me, but a friend traveling for work. I would have snatched the offer or at least forced myself into premium plus since I believe his work did pay for E+.