The whole UPG terminology thing is a joke IMO.
You get upgraded to a view room or concierge level or larger room with an extra pillow. It's very misleading but that's our own fault. Never heard we upgraded you Mr. Zzyzx to the presidential suite or something like that. Never going to happen. A one bedroom to two bedroom at RI has happened to me before and the front desk person thought I was asking for Fort Knox.