Just FYI - great drag and drop react library https://github.com/kutlugsahin/react-smooth-dnd

Regarding the ongoing conversation: we use a number of React components from npm, including the latest Material UI, QR Code renderer and Autosuggestion field. The initial setup was a bit confusing, something close to this one http://blob.tomerweller.com/reagent-import-react-components-from-npm , but when you're done it's just a matter of a few lines of code to add and wrap your component.

Also: react-avatar-editor, moment(for datetime related stuff) and I'm going to use react-smooth-dnd soon too.