Stitching Blogger's Question of the Week: Colour Conversions?

Have you ever done a color conversion? If so, what did you think about your results and would you do it again? If not, would you like to try someday?

I've not done a colour conversion yet. Although I do love what other people have done with "Tempest in a Teacup", I stitched in in plain old salmon tones but other people have had great success with other colour selections.