OK, it can call people with the app but doesn't seem to work like a car bluetooth device with your normal call plan.
So it's a bit like what'sapp.
Advantages of the yoke? Well once you get your head around it then play music, search Internet, basically like Google home mini.
Good sound. As far as I can see so far it's the sound that's the advantage, also do stereo with two, not sure if Google mini can do that.
Control light bulbs is a fun toy, maybe turn lights on and off at home when travelling but a cheap timer and a cheap lamp could do the same. And fairly sure google home app can do the same.
A few more tests to do so I'll post if anything major pops up.