Hi Charles and welcome to the Disney Parks Moms Panel!
I have been a Tables in Wonderland card holder several times. The discount has been well worth it for my family. There is a cost to the card but we have saved more than the card cost making it a great value for us.
Unfortunately, while your Tables in Wonderland discount is accepted at the
Hollywood Brown Derby restaurant in Disney's Hollywood Studios, it is not accepted for the Dine with an Imagineer program. The
Dine with an Imagineer program doesn't accept Disney Dining Plans or discounts. I still believe it would be a magical experience to have a meal with an Imagineer.
Charles, thank you for visiting us with your question. I hope you'll let us know if we can help you with any other questions!
Wishing you a magical vacation,
Amy H.