From the International Herald Tribune:
Marcel Proust, "Proust of the Ritz," as he was called, dined there often with the "gratin," or upper crust, eyed the pageboys and gossiped intently with the ambiguous Olivier. Edith Wharton, on the other hand, detested the place. Paris ladies, said one of her acquaintances, could be divided into two groups: "Ritz and anti-Ritz. The anti-Ritz class contains only Mrs. Edith Wharton."
http://www.iht.com/articles/125182.html