We just picked our kids up last sunday after they had been away for a week with their nan & pop. Mya-Rose is 3 & Bodhi is 1 1/2. We also left them for a week back in august of this year(with nan & pop). They love it. Have an absolute ball. They get to do heaps of things they dont do with us & all attention is on them the whole week.
We are going on a cruise in feb next year, so they will be going again for either a week or 10 days.
I think it would be harder on u than on him