Through this credit card you'll be able to benefit from Amex promotions, which generally provide great discounts at specific retailers, including Receive $5 back
Marriott Points are transferred directly to the Marriott accounts, and not to your credit card, meaning you won't lose points due to cancellation of your credit card
If you don't accumulate or use the equivalent of Marriott Points in 24 months your Marriott Points will expire unless you purchase using the credit card in question.
What You Can Do When You've got an Credit History of 6 Months It's really sad that the most reputable credit card for non-bonus categories of spending has gotten so much.
It is not possible to downgrade this card to any other card without an annual cost, so I would suggest turning off your card when you don't wish to keep it any longer.