I would like to know as well. I agree it's not "sexy" or "wow" but it communicates what it's meant to. This is like any graph my college professors made - they did their job.

Does it? What's with the arrow going through the crowd of people there?

The fonts are all off. Looks as though antialiasing is turned off, and the kerning is all wonky. It's also inconsistent -- look at the spacing between the top of the boxes and the headers.

Depends on how you look at it!