The Transformable Web Part is meant to take the functionality of a Pages+Repeater, and compress it into an easy to use no-coding-necessary Web Part.
The web part is primarily intended to create structured content for users where you don't need any special coding logic, you just want to give them a couple of fields and then specify how those fields are displayed via Kentico's Transformations.
A normal transformation takes an object and allows you to transform the object's values in a Transformation. This tool takes the Properties of your web part and allows you to transform their's values in a Transformation.
Simply Clone, add your custom properties, create your transformation, and you're set to go! Also supports "Multi Row" logic and skipping rows with missing data.
For more info on how to use the web part, see the "Documentation" tab of the Web Part. Enjoy!