If you're only using React with ES6/ES2015, you could also try Preact. I've found it to be a pretty decent drop-in replacement for React. There's also a preact-compat package that supports some additional React features.
That might be a point in favor of Angular 2 where you need code that can be shared between mobile and web apps. Nativescript is similar to React Native, and has built in support for Angular 2.
There's a bit of a learning curve, but you'd find that A2 components are similar to React components, and have similar lifecycle methods. So although some of the specifics about how you do things are different, you can use the same patterns and practices you've been using with React.
That's not to say that you should move to Angular 2. Just that many of the good habits and practices you've developed while using React are portable.