I kept my Platinum card for a little while. It just wasn't impressive so AMEX credited back part of the AF. The main reason was that they wouldn't give me CLI on the credit products. All my other cards give freely but not them so they were out of there. Thing is with my biz card they are bending over backwards to meet my needs. Closest thing to my amex play is my ameriprise mcwe. I've got an ameriprise account where the points are converted to cash back, 1.5 percent back. I'm not sure about amex Centurian but this is extremely good service.