Cards with no annual fees are good supplemental cards to use for the extra benefits or rewards they offer. (valuepenguin.com)
As a purely spending rewards focused card, it is inferior to the Capital One ® Venture ® Rewards Credit Card and doesn't have enough affiliation related perks to make it a good supplemental card either. (valuepenguin.com)
Supplemental card holder is not eligible for this offer. (delta.com)