[fiendj]

From my understanding (having booked compass club for next year on the same offer), the compass club perks are factored into dining so if you pay for dining, the cost of breakfast is deducted from the price.

I believe this means that you will only receive a voucher for dinner as breakfast is already included. Hopefully someone more knowledgeable about dining can confirm this.

Does the offer you have booked include the gift card? This could always be used towards snacks in the parks and you can make use of the afternoon tea in the compass club lounge.

I'm afraid I can't answer whether the full board dining plan is worth it but it might be worth considering whether you would prefer more sit down options(using full board vouchers), or whether you would be happy to pay for counter service meals instead.