The Marriott Bonvoy American Express Card stands out for those who frequently stay at Marriott hotels, allowing cardholders to earn 3 Marriott Bonvoy points per £1 spent at these properties and 2 points for other purchases. The sign-up bonus of 10,000 points after the first purchase is a nice incentive, particularly for new users. Additionally, the card grants complimentary Silver Elite status, which includes perks like late check-out and bonus points on stays, enhancing the overall value for regular customers.

However, there are notable drawbacks to consider. The £75 annual fee may deter casual users who do not stay at Marriott often, and the high APR of 56.6% variable can lead to hefty interest charges if the balance is not paid in full each month. Furthermore, the card's acceptance is limited compared to Visa or Mastercard, which could be inconvenient for some users. Overall, while the Marriott Bonvoy American Express Card offers solid rewards, it's essential to weigh these benefits against the fees and potential pitfalls, especially if you're not an avid Marriott traveller.