for my own use i run it on a fire tv with sickbeard and sabnzbd running on a desktop to supply content.I've got Kodi on an android box and watch most of my TV on it. It's not as fast as the Roku 3 but they have some hot programmers or something.i 'use' ubuntu on older machines i still have a use for.
but right now i'm really into playing with raspberry pi's. jut got my hands on some zeroes. jammed one inside an old nes cartridge, now i have access to every nes, genesis, and snes game made.
i built a kodi machine out of a pi 3 - those are fun little beasts.
but i do suck at the terminal stuff. feels like i'm back in the dos days working with it - which does oddly have its own appeal
i did just build a setup for a friend that had sickbeard and sabnzbd running on the pi 3 connected to a 4tb external drive.
i need to work in multi-thread par 2 and unpacking support. that should really improve things. but as is it's a nice little workhorse that runs on a fraction of the power my set up uses.