From a visual perspective I miss some of those more esoteric symbols, but the current Apple (US) keyboard gets it right. Symbols with text labels for modifiers and clear pictographs for the function keys (though the F3/Mission Control icon is a bit unclear until you click i and the behavior of F5/mic seems unhelpful). I just remember a few too many family tech support issues trying to help a struggling relative understand that command and 'open apple' are the same thing.