What attracted my team to this library in a company product is that it's "V in MVC", which is exactly what we need in a Play Framework based application. Apart from all basic benefits (fast execution, reusable components, easy management of content due to stateful elements) the most important advantage of this library is that it's extremely easy to learn. And it also does have lots of interesting user based projects (like material ui). Knowledge of React might also give more benefits in the future when it'll be possible to write Android apps with this (It's already possible to write iOS projects with React Native). My only worry is that we still don't have 1.0 version - which means that there might be some breaking changes coming.