In this day and age, how could people use desktop reader without syncing feeds when they're on their phones? I don't get it.
NetNewsWire on Mac is pretty good looking and fast software. But it is useless without its counterpart on iPhone.
When it comes to RSS feeds, it is an either/or scenario. You either have RSS wherever and whenever you want (and it has to be synced up and up to date), or you don't.