I'm Platinum and have received EUA upgrades on all four flights I've taken since it started. As far as the 'Silver-Gold-Platinum' competition for FC seats, on all four (EWR-ATL & EWR-ORD R/T segments) there were plenty of empty FC seats available upon take off!--In fact,on my return from ORD yesterday morning, a late arriving Silver casually asked if instead of his coach seat, could he take one of the available FC, and was told "sure!".