As it is a very common question about Rx and Chronos pros and cons, I’ll try to answer it.
Maxim Efimov

Not quite sure I understand the argument against subscriptions & activity/fragment lifecycle. Tying subscriptions to an Activity/Fragment lifecycle is fairly simple. You can contain all your subscriptions in a CompositeSubscription and subsequently unsubscribe in the appropriate disposing lifecycle method (i.e. onDestroy()).

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