Yup, system wide upgrade. You can really only use them for domestic or HNL....and I think caribbean. They're good "system wide," meaning you can use them to upgrade to any destination....but flights w/ BizElite you can only upgrade a Y/B/M fare. I've flown in Coach on a cheaper fare across a few oceans w/ SWU certs just sitting idle. The problem is you either pay a grand out of pocket to get your ticket up to an M fare and be upgradeable, or if by chance the cheapest fare available say ATL-DXB is a Y/B/M.....you'll be on a cheap ticket ATL-PHL-BOS-FRA-DXB....in Y on other carriers. That's when travelling for work isn't so much fun..

But yea, SWU certs....I've been Platinum for 3 years now and only ever used 2: HNL-SFO and ATL-LAX....the rest all got tossed