Yes, I think a good money saver.
I JUST made our first Priority Seatings ever and it took the lady (who did seem very nice & efficient) on the phone a half hour to do it -- 1 Donald Breakfastsaurus, 1 Epcot Ice Cream Social. Yes, we did have a special request noted that our eldest is diabetic, but a half hour! Thank goodness there's a toll-free number for DC Members. I would have blown a gasket over that long-distance charge for the privelege of spending lots of money to eat there.
On the other hand -- keep smiling-- I just successfully made the 2 Priority Seating character meals for our first Holiday in Disney World!!
Also will be signing us up for a subscription to our fave magazine: Family Fun at a discount with this. Kids have been enjoying the teasing Disney mag subscription -- nice build-up to keep them motivated on their paper routes.
And we're hoping to use for some discounts at hotels on our drive down & back.
Good luck.