They don't give specifics - though they do give breakdowns of scores (appearance, taste, tenderness etc). Most of our big hits came on appearance. That has a lot to do with garnishing which I know nothing about. I basically slopped the food on top of the lettuce and moved on to the next category.
But my ribs - well, they didn't need to tell me what was wrong with them. Just plain undercooked and I knew it as soon as I took them off the smoker.