I only have Siri on my AppleTV 4K and never use it. I only own Android mobile devices, although all my Computers are and have been Macs since the late 80's. Alexa is "Dumb as a Box of Rocks", but she runs the house have way decently. I have her set to extended response and we have 15-20 minute conversations as to what a POS she is and I get eMails from Amazon telling me to "Stop Harassing" their AI. I'm tired of her "NOT" disconnecting from Bluetooth devices that it needs to share. I asked GA, that I have set with a British accent, all our other stuff is all Australian, about my Calendar, of which I have been trying to sync with others and that's a whole other mess. I asked about the weather too and something else I can't remember. So it wasn't that monumental.
I pray that it works halfway decent because my neighbors that I just moved to dish, one is legally blind and they are hoping that the voice control will help in the operation of their new H3. And that initial ordering process on the phone and the website is a mess too.