As far as dollar amount goes - just look at the menu and see if it would be worth double what 2 restaurants that are 1 credit would be.
The food and service are very good. We do the deluxe plan, so we don't worry about the credits, as we only do 2 restaurants a day.
I would say that if you don't want to pay out of pocket for dining (and are on the regular plan) and would like 1 TS restaurant a day, then no it wouldn't exactly be worth it in that situation.
If you paid OOP for this (or not dining plan), then yes it is worth the money.