Most recently the stories were about specific controls that worked on Android but on on iOS, and then the new version arrives, breaks the Android behavior but fixes the iOS behavior...or vice versa, sometimes for the same control, in a later release.
I've heard better things about NativeScript; it's actually a more mature project than React Native, and has a lot of features that React Native lacks. And it's apparently a lot more stable.
But fewer people use NativeScript, so it's possible that I'm just not hearing as many of the horror stories. Also curious about Weex.
But I'm not making apps right now, so I haven't tried any of the above. People keep wanting to pay me lots of money to work on easy backend projects. Who am I to say no? :)