I have played around with this a bit, and I will not be getting rid of my cable box anytime soon. Like KN1GHTMARE said, there are not enough channels for this to replace your main cable box, yet. It has some potential. I like that Verizon seems to be the first to make the leap. Perhaps we will be the first to get improvements as well. Till then you Xfinity and DTV guys don't have too much to be jealous of.
But when Xfinity and DTV gets in on this, then that's where we'll see the magic happen. Xbox One is already gaining some ground with this, so at least we know there's potential for this. We;'ll see it happening.