The MYW dining plan includes a counter service meal, a "snack" (ice cream bar or popcorn) and a table service meal per day for $35 (plus tax) per adult. IF that fits your dining style, it should work well for you. If, as you indicate, you prefer full service restaurants (we do, too) then you will probably be disappointed.
Depending on your travel habits and number of "park days", if you can justify the cost of an annual pass, you can order the DDE card for another $50. It will give you 20% off at vitually all Disney operated sit-down restaurants, buffets and lounges (including alcohol). IT also is good at counter service places in AK, Pop Century, and All Stars as there are no full service restaurants there.