Originally Posted by
cardsqc
They can, but they have to pay a fee:
Complimentary Access to The Centurion Lounge®
Delta SkyMiles® Reserve Basic and Additional Card Members receive complimentary access to The Centurion Lounge when flying on a same-day Delta-marketed or Delta-operated flight. The eligible flight must be booked on a U.S. issued American Express charge or credit Card. A Card Member may bring up to two guests at a per-visit rate of $50 per person, per location.
Sorry, meant for free. Currently Platinum cardholers can guest people into the CL for free (I know that is changing soon) where Delta Reserve cardholders can't. Platinum cardholders can guest people into skyclubs for the free but Reserve cardholders get two free passes a year which I think it fair seeing they raised the annual fee when the implemented that benefit.
I don't really think that is contributing much to the clubs being at capacity.