This is debatable... there are many pros (mainly about administrative areas) and cons (mainly for distances accuracy) about this map projection.

Anyway, plotting worldwide maps and data in "the best" map projection is a never-ending story; this is the reason Google created his own projection EPSG:900913 (900913 is the digit form of google string), which become standard for web mapping.

For worldwide maps, the best compromise would be to draw everything on a 3D sphere (which requires much more computing effort and resources); this is the reason Google finally ended by implementing it after many complaints from users. Afaik. Windy also plans to implement maps on 3D sphere (which was already available a couple of years ago), see this post.