<prompt> Human: Up until now I have used 34 of the major card companies found in America. I used to find a lot of benefit in cash back rewards cards, but from personal experience, what Ive read from various posts across rpersonalfinance, and my interests I dont see a tremendous benefit to them. I would rather have a rewards card for something along the lines of Airline Miles and Hotel rewards. I currently have a Discover Cash Back card that has actually had excellent choices for bonus cash back rewards as well as lengthy terms they are offered for. My other card is an AAdvantage card from Citi that has served me well the past few years. Later this year Im able to take a trip for free minus a tax expense. I was able to use my rewards points to pay for my plane ticket as well as my SOs round trip and still have some points left over.I have been considering adding the Marriott Rewards card to my wallet or an AMEX Rewards Plus or AMEX Platinum to my wallet, but I cannot for the life of me decide which path I want to take. I have spoken to a few people whom each advocate for each card over the other and I cant make my mind up. I want to use the card frequently and pay off monthly in full for rewards benefits, but I feel like I already have that in my AA card. Would it benefit me to get either of the aforementioned cards and ditch my AA card, or keep it and add either of those cards? I want to hear from people with good and bad experiences from AMEX if any, theyre rare from what I gather and how the rewards program stacks up versus others like the Mariott Rewards program. Neither my SO or I will ever travel for work so it will be purely recreational when we are able to.  <response>: Ive had an Amex card for 6 years now without a complaint. I have left my card at restaurants probably 4 times now and they would overnight me a new card no questions asked. I had a green card for years and last year I switched to the Everyday card to take advantage of the 20 bonus points. I went to London a few months ago and used the card for all my purchases and didnt have one issue while abroad. Im really going to miss Costco not taking Amex next year. 