React Storybook is really similar thing. Although, it acts only for simple components - it seems that you can test presentational components.

Actually, Storybook is a lot simpler because Structor has convenient visual component composer. And of course, Structor uses source code generators with predefined boilerplates for Redux, Redux Saga.

Navigation between pages in Structor works with React Router. And you can export all pages with routes.

The main thing that is not liked by others is that Structor works with its own seed projects. But this is done only because Structor compile whole project.