My mother has resigned to feeding our three family cats (which... sadly, stayed at home when my brother and I grew up and moved out) IAMS... the kind in the orange bag.
She has bought them Felinidae, Kitty EVO, and other good and even semi-good brands. They refuse to eat it. REFUSE... and these cats love food, mkay? So they eat IAMS. We know better... but we also know our picky cats. I guess at least they're eating... and at least it isn't Ol' Roy.