The card is not valid on holidays, ie... July 4th, Christmas eve and Christmas Day, New year's eve and day... As long as you dine together you will only need one card, it is good for up to 10 people. Also they add 18% tip, so if you get this card, be careful not to double tip, that would wipeout the discount. FYI, we get the TIW (DDE) card every year with our APs.