What we liked most about our DCC is the 6 months 0%. We used to plan our trips so that by month 5 we would be getting a bonus check or some other lump sum and we'd plan to use that for the balance pay-off. We are better about our finances now and we still use the 6 months 0% but we have the $$ sitting in the bank anyway and just use those extra months to accrue interest for *us*.
One of the things I really like about it is it is another source of discounts for us. Besides the shopping discount, sometimes we get discounts on party tickets, or tours. Our TA knows to check all discount options for us and between our APs, DCC, and
AAA membership we can usually score a discount for everything.
We know the Rewards points are for Disney only, but that works for us since we go so often. It is just extra $$$ for us. We get the $$ xfered to a Visa gift card and we either use it in the shops or we just put it on our account at the hotel to charge against. We have had upward to $250 on it before. But that was a couple years worth of points collection. The funny part is, a WDW trip adds points to pay for another WDW trip! LOL
We enjoy getting the free 5x7 print and the private meeting the characters at Epcot. We do that every trip. It's like $12.95 in our pocket!
Basically, IMHO, if you do Disney at least every 2 years, and can be disciplined enough to pay the balance off
every month, then it's a great idea. If you can't discipline yourself to pay it off every month, it's not so great...your interest can easily outstrip any savings the card can offer you. It comes down to a personal choice.