I couldn't find anything about these features on my first pass, though I do now see the "Cleanup" bit on the "Data Visualization" page. I would have really liked to see more about features/tools/strengths and less nebulous marketing promises.

In Kato filters can be replaced anywhere. Plus we offer a ton of integration and data manipulation features. One of the biggest things that the client really liked over Superset is the ability to set up drilldowns where when you click on a bar chart on any graph you can see further details about that bar chart in a table, or any other graph. And this drilldown can go however many levels deep. We can link different reports from entirely different datasources with drilldown. I don't think that's available in any of those mentioned above and it completely changes the user experience.