Centurion - Mandarin Hotels

I, like most of you Centurions, have received today in the mail, the Mandarin Centurion flyer. Having read it carefully, partly because I have been trying to book a couple of nights in San Fran early next year through Centurion, was disappointed to see the flyer made no mention of the upgrade at the time of booking being a "guaranteed" benefit (subject to availability - naturally).
So I called Centurion and spoke to a guy called Aide (Adrian?), he admitted he didn't know about the offer but said he would check and find out if the guaranteed upgrade was still part of the package - having checked, he said it was!
I am still a little sceptical so will reserve judgement until after I have actually booked and received the benefit. I didn't particularly like the SF MO policy of discounting the rack rate to reflect an upgrade allowance rather than giving you an upgrade.
Any other feedback would be welcome.
So I called Centurion and spoke to a guy called Aide (Adrian?), he admitted he didn't know about the offer but said he would check and find out if the guaranteed upgrade was still part of the package - having checked, he said it was!
I am still a little sceptical so will reserve judgement until after I have actually booked and received the benefit. I didn't particularly like the SF MO policy of discounting the rack rate to reflect an upgrade allowance rather than giving you an upgrade.
Any other feedback would be welcome.