Question about Apple TV

The latest versions of Google's Chromecast are suitable for Android, Apple and Windows products.
Although simple, it works well.
I have not tested the Amery Smart TV which is one of the boxes that can connect all sorts of devices in addition to Apple and Android as it supports DLNA, Airplay and Miracast.

For the Apple TV, the integration with Apple products is very powerful and remarkably simple, and everything can be streamed from any device without any problems. There are also free channels and iTunes music is managed remotely. I haven't tested ChromeCast or Amerry, but it doesn't look as simple and integrated.