Overall Satisfaction with Tableau Public
Tableau Public is the free/lite version of the Tableau visualization tool intended for publishing public data using public data sources. Unlike Desktop, there are no data connectors with the exception of Excel or CSV text files. And there is no security. It is software that is intended to extend visualization of data for public consumption with both the data and the visualizations freely downloadable by anyone accessing it.
Tableau Public lacks data connectors to Oracle/SQL Server or just about any. No ability to share non-public data nor to package into Tableau Reader. No ability to connect to Tableau Server or Tableau Online to secure your information. However, if you want basic visualization -- I would have killed for software like this years ago when I was using Java and PHP libraries to create my own!