When Le Cellier had 1 credit lunch, it was nearly impossible to get! Now it is a little easier since both meals are 2 credits.
It certainly gets good reviews, but I've heard better steak can be found at Yachtsman, Jiko, or even Flying Fish. I think your deciding factor should maybe be location first - will you be in Epcot that day for sure? If so, keep it. If not, consider one of the others!