I like how easy it is to debug code using electron's debugging tools, as well that they have support for React Native too! It can be slow at times depending of what your app does or not doing so much work in terms cpu consumption but this may just come down from other things running simultaneously (browser tabs open etc).
The lack of native modules which are available through nodejs is frustrating sometimes when trying do certain tasks such as sending data over bluetooth devices. Try out both side by end development if possible before deciding whether its right tool/environment fit best into the projects needs. This has been very useful because we've already used many different languages including C++ Java python ruby Javascript HTML5 CSS3 JS AngularJS Typescript NodeJs Express js MongoDb PHP Laravel Symfony2 Andriod Kotlin Swift.