I’m a big fan of the Apple TV. In terms of functionality, I feel like it is the superset of all streaming devices. You can cast media to it from smartphones and tablets. Out of the box, you can stream your own local content from a PC. It ties into Apple’s iTunes ecosystem for movie/TV rentals and purchases. And the third-generation Apple TV has a large number of built-in channels, while the fourth-generation has a vibrant app store full of third-party apps that provide access to a wide range of content.
For several years now, I’ve had two third-generation Apple TVs, one for each TV. I finally decided it was time to replace one of them with a new fourth-generation Apple TV — Persephone — and pass my older one — Beauregard — onto my parents.
So far, I like it a lot. It can do everything I could with my previous Apple TV, but with lots of new apps available (particularly, Plex and games). Even though I predominately use a Logitech Harmony remote, I do also find the Siri Remote pretty interesting and well-designed, particularly the ability to search for content across all of your apps.