Today I tried "OK Google & Hey Google"; nothing.
I then swiped over to assistant and asked it to "Call Joe"; it replies: "I can't do that anymore."
I then ask it to text Joe: it records my message, gives option to touch send, I do that, and it is "stuck" (rotating blue circle) on Send (via watch). If I swipe, it tells me there was an error G917510, and "Sorry, there was a problem."
It seems less and less seems to work as it should, and I'm getting more and more frustrated that it can't be made to work as advertised.