Can't speak for Le Cellier, didn't eat there, but did at Concorse and the food was great all cooked to order. The NY Strip with the butter wine sauce is fabulous. We had the best waiter ever, Jorge, so great I'm writing to Disney about him. I think most Disney rests are noisy, but that's ok with me.
We found no matter where you went you had to ask for medium, slightly rare instead of medium rare. This way it came out perfect.
Believe it or not the best steak we had was at Coral Reef. My DD can't eat fish so she got the NY Strip, it was the best, I tasted it and wished I had gotten it myself. We did switch the potatoes that came with it to the roasted yukon's instead, yummy.... If you do pick Coral Reef you MUST have the warm chocolate dessert it is out of this world!!!!