Originally Posted by
3Cforme
The program T&Cs are instructive:
Applicable to one standard room booked by 3 p.m. local time 72+ hours before day of arrival at participating hotels. Member must pay regular RACK rate. Black out dates apply. Not available at resorts. Room upgrade and Free Night Award redemption do not apply when this benefit is utilized. Minimum length-of-stay requirement must be met.
One should never expect at upgrade at a sold-out property, IMHO.
The black-out date is the tricky part. Therefore it could well be that you won't get a room at all. Was this case during BAUMA in Munich earlier this year.