I also got a Google Home Hub at Black Friday sales.. I have it on a side table in the living room, where there is a TV and sound system with Chromecast.
What I like.. it’s attractive. It displays what it thinks I said across the top of the screen. Android integration with my Pixel Phone. Google Maps! YouTube!!!
Video is comparable to the Echo Show in my bedroom, sound clear but less impressive than the Show (but I have the Chromecast when I need good sound).
What I think it should do better.. when it shows me directions to someplace, I should be able to say, Send to my phone, like I can when I view Google Maps on the PC. I’m also trying to figure out how to switch between viewing videos on the TV via Chromecast, and watching on the Home Hub device.. when I don’t want to wake the person asleep in the next room.