Tableau Desktop is a huge timesaver and way easier to learn from scratch than most

Overall, Tableau Desktop is very user friendly compared to competitors I've used. There is a not insignificant learning curve for total beginners, but it's manageable and the pieces do fall into place quickly. The drag and drop interface, ability to easily scale through different visualizations of the same data, extensive design customization available, and wealth of training resources are very important. But, as with any massive platforms, there are some frustrations with wonky features that are not intuitive (dashboard scaling, mass changing of design elements, custom Shapes being much too small in the Marks view to see details without adding them to a sheet, and the biggest frustration as a non-developer/data architect -- the language used to explain complicated calculated fields, and the use cases presented, are not true to life and don't use language that is immediately accessible.)

Tableau Desktop is very well suited for presenting data in meaningful and interactive ways. The learning curve is a bit steeper than expected for true beginners, but there is bountiful information available online and in their community. It would be helpful if their eLearning used some more in depth, real world examples of data -- as is, it's too clean and not representative of most databases. They would also benefit from having an archive of use cases so you can learn based on use cases as relevant to your needs as possible. For organizations who don't need to expose interactive dashboards to end users and only need to present static reports, it may be overkill. It would be nice if view-only didn't require a license.