It's worth noting that both the React and Redux teams generally discourage the use of decorators. Quoting the Create-React-App README: > Create React App does

It's worth noting that both the React and Redux teams generally discourage the use of decorators. Quoting the Create-React-App README: > Create React App doesn’t support decorator syntax at the moment because: > - It is an experimental proposal and is subject to change. > - The current specification version is not officially supported by Babel. > - If the specification changes, we won’t be able to write a codemod because we don’t use them internally at Facebook. > Create React App will add decorator support when the specification advances to a stable stage. In addition, use of the React-Redux `connect` method as a decorator can lead to unexpected behavior, such as `defaultProps` applying to the generated wrapper component instead of the underlying "plain" component. I'm not sure how the `kea` decorator handles that sort of thing.