As an EXP, using my SWU recently for flight from
SXM-MIA -. was initially told 1 seat left in Business - but finally someone else with a higher status (? a CK member?) cleared ahead of me
MIA-CLT - cleared when purchasing the ticket
CLT-SAN - again another failure
Since the last 2 years, even as an EXP - clearing upgrades on both status or SWU has been very poor - I believe even the 100 hrs out upgrade for EXP is a fairytale from the past.
Cheers!