We have both the original and the Premier(because we had one before they had the premier). Love them and mainly now of course use the Premier because of the 2% back (only 1 % for all categories with original/no annual fee) on gas, Disney, grocery stores, and dining categories. Usually we earn well over what the annual fee cost each year (usually earn at least $500-$1000) by charging all of our expenses from those categories and pay it off every month.
But if you don't want the annual fee you can just get the original Disney Visa Card and we still earned a few hundred dollars yearly with that one before we had the Premier.
Also you get 20% discount (better than AP/DVC 15% discount) on most tours and a discount on MNSSHP/MVMCP in the parks. You get 10% off merchandise purchases at all Disney Parks stores, and DisneyStore.com over $50 (Ap/DVC you don't have to spend a certain amount so this is not better than those) ,and 6 months interest free for your vacation charge. Also you get to book certain room offers etc before the general public, or F&w events several days before the general public. (This year it was 2 days prior).
Another extra perk if you are interested in Disney Pins you can buy a special pin just for cardholders every year.
Yes we are guilty of paying them back some interest on occasion like any card but you don't have to do that if you are religious about paying it in full weekly, monthly etc.