How does Tableau make your reporting more reliable? My understanding is that Tableau can hook into different data sources -- like your warehouse and SalesForce, for example. Then you can write some kind of SQL to generate charts.
The auto-chart generation is nice. But what about Tableau makes it more likely to be accurate? Aren't you just as likely to make an error on the SQL in Tableau than if you didn't use Tableau?
I never said that about tableau in particular, which is why I listed half a dozen analytics platform solutions. Using any of those makes for a more powerful, flexible, sharable, usable tool than one engineer's self-rolled internal webpage with "analytics". Nothing special about Tableau in particular, in fact, I categorically prefer SQL-based visualization tools over Tableau.
The only exception to "using any of these is better than creating your own" is large companies like Google and Facebook, where they have entire teams of engineers who are dedicated to creating an in-house SQL+Visualization tools. It is absolute hubris for one engineer to think they can make a robust analytics platform!
Tableau is a GUI first. It's not designed for SQL based access and barely supports it other than as a type of custom datasource.
Since people aren't typing code, it can be more accurate to use, and it provides visual results beyond just a table that can be useful in detecting anomalies in your data.
The auto-chart generation is nice. But what about Tableau makes it more likely to be accurate? Aren't you just as likely to make an error on the SQL in Tableau than if you didn't use Tableau?