Ease of use. That's one of the biggest strengths of Tableau. What could take you hours to analyze and visualize with other software can take just a fraction of that time. Here's an example of that from Jorge Camoes of excelcharts.com. A week ago, Jorge visualized population for various countries by age group and a given year in Microsoft Excel. Now he's used the same data and visualized it with Tableau Public--to stunning effect.
How easy was it for him to do this in Tableau Public? We'll let him say so himself:
"I never really played before with Tableau Public and it took me less than an hour to upload the data and make this chart, without reading a manual or watching a tutorial (changing line colors was the hard part). It says a lot about its usability."
Use the drop down menu to switch between different countries and see how the different population pyramids look. It's a beautiful visualization, and we hope to see more.