You'll get a bucket of pastries for your table, but then you choose one entree; it's not all you can eat or a buffet or anything.
As for whether it's worth the money, that's going to be a personal question nobody can answer for you...are the characters important, and if so, how much are they worth to you? You're paying for a character experience, so that's a big part of the equation.
As far as the food itself, in my opinion, it's one of the highest quality breakfast options in WDW. My family loved our visit this summer and will definitely do it again.