The vouchers are great if you do your research.
With a Quick and Casual voucher, which are counter service places, (I just bought 3 at hotwiresavings.com for 11.50ea, a free 30 day membership and 10.00 off the first order) you get a non-alcoholic drink, meal, side (if not already in the meal) and dessert.
They are a great bargain if you use them at the Pepper Market or Beaches N Cream, but that's about it. They include tax and gratuity, but usually for counter service....I don't tip anyhow.
The Vacation Kingdom Lunch (or sit down places) are for a non-alcoholic drink, appetizer, meal and dessert. They run 31.00 per adult and 12.75 per child. Again, they include tax and gratuity.
We bought ONE VK for RFC at AK and two adults and one child (5) ate on it. The lunch and dinner menu are the same, so can be used for either. I don't know about other places. We got a smoothie (5.99 reg), Tsunami Shrimp Cocktail (childs meal and reg 10.99), A Platter with ribs, chicken and shrimp, fries and a veggie (reg 25.99, as I recall) and Banana's Foster for dessert (reg 6.99).
We made out and there was plenty of food. The wait staff was GREAT about helping us pick out the best items to get a lot for our money.
But again, you have to look at menus and compare prices to know what is and isn't a good restaurant to use them at.
They also have Breakfast Certificates for 18.25 adult and 11.00 child. These are NOT worth it anyplace.