I honestly think only YOU know the answer to that. Figure out how much you'll be spending if you get the
DDP. Then look at menus of the restaurants that you think you'd like to go to. Figure out what you would realistically order if you didn't have the DDP. Then see what the difference is.
My DF and I are getting the DDP. I know that we'd at least get 1 appetizer and 1 dessert along with our entree, and it just makes sense for us to get it. It'll be a bonus to be able to get 2 different appetizers and desserts and to share and taste different things.
If you normally don't get appetizers or desserts, maybe it's not for you?