TIW is 20% for dinner in most places it’s accepted. I believe that Fulton’s, and Portobello drop to 10% at dinner (based on what I’ve seen posted). It’s also 20% at breakfast and lunch and it’s 20% on alcohol. TIW also gives you a discount at the food courts at all the values as well as the food court at POFQ plus breakfast at POR. I believe that discount is 20% as well. I can’t find my receipt from Pop this second.
TIW also gives you free valet parking at the resort you’re eating at, technically allowing you to valet your car at the GF, Poly, Contemporary, Boardwalk, Yacht, or Beach and head to the park, just so long as you present your dining receipt to the valet stand when you leave.
If it weren’t for the passholder discounts on rooms, we wouldn’t be able to go as often as we go either.