I have a couple Google Home mini's in my apartment, an android TV, and almost all of my lights are Phillips Hue. I use the assistant constantly to turn on/off lights, change colors, dim them, play things on the TV, etc. Very high usage.

I think using the assistant for things like calendar, weather, traffic, calls, etc is more difficult than just using a phone.

But being able to turn off all the lights in my apartment when I'm ready to go to bed by just saying "lights off" is really nice.