Do you have a bunch of observable subscriptions in your code? Are you finding it a pain to have to go through the mind-numbing pattern of making sure you’re unsubscribing to them in the ngOnDestroy life-cycle event? You are unsubscribing, right?
Have you ever found yourself working on a problem and having troubles moving forward? Have you found that you start looking at smaller and smaller changes, thrashing about with abandon as you lose focus with the bigger picture: actual problem you’re trying to solve?