Dining plan for one night - full board extra plus worth it?

[Isabelle12345]

We will be going for one night to Disneyland paris during our 10-day paris trip (Doing two park days, staying in Sequoia Lodge)
We have two kids, 6 and 8
I am thinking of getting the full board extra plus which, if I understand correctly, would give us one lunch on day1, one dinner at Auberge de Cendrillon or Olaza Gardens day1, one breakfast buffet day2 and one lunch day 2 + one snack and one special drink
Am I understanding this properly?
It looks like it would be worth it if it includes all of that, right?

 

[Karin1984]

What is the price difference to go with a lower or no dining plan?
Do you want to do character meals?

 

[Isabelle12345]

to go with the extra plus dining plan it would be 130Euros per adult and 80Euros per child, including one character meal, two table service or quick service meals, one breakfast, one snack and one drink.
Plaza Gardens alone is 80Euros for adults and 40Euros for kids for dinner
Auberge de Cendrillon is 95Euros for adults and 50Euros per child

However, I could go do Plaza Gardens for lunch for 45Euros per adult and 25Euros per child for lunch if I went without the dining plan... but from what I see lunch doesn't have Disney characters?

 

[Isabelle12345]

Is it possible that there are no more reservations available for character dining in August, or do they just release the dates later on?