I am doubtful regarding my ability to renew my elite status for 2003.

Apparently, I am eligible for free "Starwood Corporate Preferred" status through a professional organization. Alternatively, by purchasing travel five times through Travelocity, I can get "Starwood Preferred Plus" status.

Both of these programs allow for complimentary room upgrades, which is the reason I am interested. No elite bonus miles, however.

Does anyone have any real-world experience with these programs, particularly in the room upgrade category? Would the desk clerks be clueless if I presented a card showing me as "Corporate Preferred" or "Preferred Plus"?