I'll be cashing in some of my points for a 7 Night + Flight package (probably category 7/8/9, if it's relevant somehow). What I want to know is how likely it is that I'll get my platinum upgrade at whatever place I'll go. My current thought would be maybe the JW Guanacaste or Kaua'i Marriott Resort, but haven't landed on a specific destination yet.
Does anyone have experience with getting upgraded using one of these packages? I'd appreciate any input.