And of course, once you're a certain size (that Google passed more than a decade ago), you pretty much lose the opportunity to ever start over from scratch on this sort of thing. You're dealing with legacy systems forever.
The idea that comes to the top of my head would be controlling lights and appliances in the house. You don't have two completely different sets of lights and appliances in one house just because there are two users, it's the same set of things for both. But that means now you have to know that both users are sharing X while some other thing (such as a Gmail calendar) may be individual to each user.
I have something called "google assistant" on all 3 devices, and none of them have even close to the same capabilities or UX flows for media playback, so I basically don't even bother using it because it's just frustrating.
Even my kids every morning fight over which Bob Burgers episode from Netflix they are going to watch with the Google Home (GH) and Chromecast.
The issue is when connecting with the app, and attempting to enter a password, the app freezes, and then force quits. Making it impossible to actually enter a password to connect the TV to my wireless network. Luckily, the WPS option works, even though it's a bit hidden.
I've tried using the app with a Nexus 6, Nexus 6P and a Pixel! There is also no on screen keyboard for the Youtube app. The only way you can search is with voice, which is not the most ideal thing to do all the time.
As of the most recent update to the TV in January, casting has become rather intermittent. Generally I must hard restart the TV before my laptop or a my phone can properly connect to the TV. The Netflix app also randomly starts and takes over control of the TV even while in the middle of running another application.
I love my Android TV, but it's a bit absurd. I now have a Chromecast Ultra connect to my TV that I use most of the time, it also allows the Google Home to use the TV.
http://www.androidpolice.com/2016/03/25/android-n-feature-sp...
ps: google employee