"GM's Marriott code GMC is confirmed in FlyerTalk's publicly usable codes list alongside Ford (FRD) and Toyota (TOY). No specific verification-denial threads were found. General Motors has major hubs in Detroit/Metro Michigan, and Marriott properties near the Renaissance Center likely handle many genuine GM employees. US verification is rare — geography matters most, with hotels within 5 miles of GM's corporate HQ being the exception."

"lol, my front desk managers *hated* any time I asked them to cover AYS. They’d go out to the desk and help no problem, but I always got some kind of attitude asking them to hop on the phone for my break. I worked at a ~650 room property and was regularly scheduled by myself for AYS second shift."

"I have been a Platinum for a few years (which implies I frequent Marriott properties on a regular basis) and up until tonight was NEVER asked for any id to justify a corporate rate or discount (I legitimately use a few corporate rates I am entitled to and AAA rates)"