Cheryl added nothing to the show. Zero, nadda.
She never said anything at all meaningful in all the time she was sat in the chair. Not once.
She talked in platitudes and colloquialisms , utterly meaningless soundbites.
She was there for one thing, to generate media interest , nothing more nothing less.
Now, thats important to the show as a business, and she was successful for them in that regard, anyone who thinks otherwise is being a bit foolish, but adding to the quality of the actual broadcast? Never in a million years.