Redux is conceptually simple and really helps in attaining a highly decoupled and resilient architecture, but it shares the same configuration-over-convention mindset as the rest of the js/node world. Once you get all the little modular pieces assembled just right, it's great to work with, but it can be quite a struggle to reach that point. There are also a bunch more libraries you need beyond just redux to make things really hum the way they're supposed to.