The Deluxe is nice but it's alot of food. We have done it but now do QSDP and then pay for just a few out of pocket meals at places we either love or want to try. It works out better for us that way. Oh and I have a spreadsheet I could send you if you want some help keeping track of meals.
If you booked more ADR's than nights you are staying keep in mind that breakfasts and ala carte lunches are usually the least expensive meals. Also, IMO, while on the regular dining plan we don't find that it is worth spending 2 credits on a signature meal. So when you are about done making your ADR's, if you go to a site like allears.net and look at the menus and prices, you can figure out about how much extra to budget for meals or if it is cheaper to upgrade to DxDP.