I've used both of my Gold Elite recognition upgrades since one up started. One (AKLSFO) was confirmed 7 days prior to travel and one (LAXAKL) was done when I checked in. My partner has also used one of his recognition upgrades AKLBNE which was confirmed 3 days before flight and he used a standby upgrade BNEAKL which was confirmed at check-in. From our experience one up has no made any difference to us. But I guess the jury is out for a few more months until this oneup stuff really takes off.