Anand is right about Miracast.
Its a WIP (Work in Progress).

The UX sticks.
It has the worst device connectivity (interpolarity) there is.
And the minor drawbacks are evident.

In the end, a polished up Miracast will always be superior to the Chromecast (which is a polished up proprietary solution for Wireless Streaming). I just hope we get to that stage, that Google hasn't abandoned the open-standard Miracast in favour of its own agenda (Chrome, Google Services, Data mining, Ads).