I have a chromecast with google tv, paired with a "dumb" 4K veon tv from the warehouse.
Honestly, the out-of the box experience with the Chromecast with google tv is pretty average. So many ads on the stock launcher.
While i liked the device (having a physical remote is awesome!), installing a 3rd party launcher (recommend F-Launcher) and de-bloating a bit makes it an incredible device, and great value.
Just my 10c though. I only use it for Emby and Netflix, and the occasional youtube. Plenty of power and handles 10 bit 4K x265 video like a champ, you can also add a USB C dock that supports power delivery if you wanted to hardwire it via Ethernet too