My 300 US pilot worked out real well, he went from little experience to a valuable co pilot. As a much younger person than me he mastered the Appollo Mx20 GPS in no time flat.
He also was a god send in doing the radio calls.
And finally he understood that the two other pilots had 6000 & 2500 hours experience respectively, and accepted our experience.
The end result was when he returned to the USA he suddenly went from being an low time instructor, to someone who had international experience. I believe he is no in he running for a couple of Jet co pilot gigs based on this experience.