We did the DxDDP on our January 18-28 trip and I sent a text to a friend on the way home "As God is my witness, I'll never do the Deluxe Dining Plan again" (a nod to Gone with the Wind)
It doesn't suit our eating stylel, even on days we did two TS credits. We like light breakfasts. A bowl of cereal, piece of fruit, muffin, etc is plenty for us at home, and while it's sometimes fun to splurge on vacation, splurging most days didn't sit well with our tummies. At home we are fine eating a big lunch or a big dinner, but not usually two big meals in one day. At home when we do eat two full meals in one day they are usually spaced apart a lot. That doesn't work with our family schedule at Disney where we have three kids who get tired in the evenings and aren't necessarily on their "'A' Game" late in the evening when a dinner would fit in with what our stomachs want.
Also, I also don't usually eat dessert with my meals. I prefer to eat dessert a while after supper at home, and in Disney that means that I would prefer a sweet treat a few hours after supper.
Despite knowing this much about our group, it seemed like the DxDDP would make financial sense to us so we booked it. After breakfast, the most that we were ever hungry for at lunch would be a light snack item. If we had a light snack for lunch, we'd be hungry again by dinner (or be able to entertain the thought of food), but we were rarely hungry for an appetizer, an entree and a dessert. We'd maybe want an entree and possibly a dessert, but more likely a dessert later on after supper.
I blame myself and should have known better that the DxDDP doesn't fit our family's style. I've tried the
DDP in other variations and it never really fits.
My advice to you is to not listen to any of us.

(well except for this next part - that you should listen to

)
Think of how your family likes to eat both at home and on vacation. Look at the plans and see if the way the plan works would fit for your family. Both in timing and how you normally like to eat.