[polyterative]

> With RxJS you should use it everywhere (observing state, observing component inputs, side effects etc). It's when you use it half-heartedly that you get problems with merging different programming paradigms

Yes, yes ,yes! I have been working with angular professionally for five years and fell in love with rxjs. If you manage to use it for everything, it really shines. Your entire codebase becomes declarative and it works beautifully. The only downside is that it takes some time to get it started up from the ground up, but once you do making changes and adding features becomes trivial. Try making smallish pipes and comment their purpose. Break them modular pieces.