Since this particular list spans the globe, I thought "Cool!" and I have been using the feature.
But I'm beginning to wonder if it's more hassle than it's worth. For one thing, I find that the way GR displays the time of send for me is confusing, with the result that I sometimes wind up scheduling two emails on the same day when I wanted them a day apart. So I'm thinking of just scheduling emails for the optimum time in the countries that are my best markets.
At any rate, does anyone have any experience using Time Travel? Does it make a difference?