I just got back from a week and then again last weekend. I never had a problem with any of the vendors accepting the card. I did, however, have a problem with the cards scanning. I was told by some of the vendors, who had to end up manually keying in all the numbers, that the cards are thinner than usually credit/debit cards and sometimes don't scan. I would advise you to bring alternative methods of payment, just in case. A good trick one of the vendors used was to wrap a piece of thin gift paper around the card and he then ran it through. Worked like a charm!