Just returned from a too short 2 night / 3 day stay. 1 adult and 2 children on the
DDP, cost was $307.35 which was paid for with a discounted gift card from costco. Total food value was $351.31 plus the value of 3 refillable mugs. One could argue we came out ahead by about $100 but I'm not sure we would have purchased 3 mugs; although we did use them several times and enjoy them at home as well. We used credits at steakhouse 71, polite pig, primo piatto, pesco bills, sanaa, epcot food booths and magic kingdom snacks. We were there for moonlight magic so we supplemented the meal plan food with our snack certificates and too much free ice cream. Mobile order was very easy and automatically applied the correct credits. I made sure to use my adult meal credits at restaurants that had adult beverages (polite pig and steakhouse 71), without those the value of the meal plan would have been ruined.
We like to share food and didn't have any issues ordering meals to share (we used 2 adult credits at steakhouse 71 and 0 adult meals at Sanna). We did have 1 kids table service credit left at the end of the trip which we were allowed to exchange for a quick service meal. We did not attempt to swap a meal credit for snack credits.