I find it strange that he'd recommend the Apple TV. Doesn't it have by far the most limited choices of content and formats, and the most limited connectivity to other devices?
Itunes music from laptop or phone works awesome, or even using the remote to use the Music app directly. Popcorn time works better than Chromecast with no lag what so ever and I get a *single remote to control the important bits: pause, scroll, volume and turn off.
I am considering buying Beamer.app or develop myself for own content with subtitle support.
Though I haven't figured out how to change DNS on the Apple TV Device (I can't edit it), so I've had to change it the router, which kinda sucks.
Also hoping the Apple TV will get support for an iPhone keyboard and a touch-lock.
I just want to point out that we had a really shitty time with Chromecast outside of using it for Youtube.
Edit: regarding DNS, try these instructions: https://www.unblock-us.com/how-to-set-up/ - not sure how much the new iOS has changed things though