it's like everything, you may have a good job or a bad job. If the rhodium plating is done properly by good/real professionals and of course it cost more..surprise, surprise! then you have a product which will last almost for ever and won't become yellowish. All white gold is rhodium plated and needs to be, as in its original form it is a little yellow of course been made of 75% yellow gold. I am sure that the rhodium plated time pieces coming from the Grandes Maisons is impeccable and won't change colour.
Kind regards from me and the kangaroos as well!!!
Francois