Is there a 1,000 ft overview of React Native with a brief description of how it works, its capabilities and its limitations out there?

There's so much hype surrounding this framework, but also a lot of criticism and its extremely difficult as an inexperienced outsider to quickly determine whether or not React Native is suitable for a given project.

When I look at another cross platform framework like Qt, I can usually get a better idea of what it can do. But with React Native, its way harder to get that big picture because it seems like it wraps some native components but not all of them, etc.

Everything I read about React, especially from Facebook just seems like a puff piece. Because I know there are Facebook devs browsing this: please consider writing a proper summary.