[Marsymars]

Yeah, it removes the mechanical failure cases, but I've never had that happen with any of my vehicles. OTOH, I'm pretty regularly in situations where I'm parked in cold temperatures without having cell coverage in a warm location where I can wait for the car to warm up. (And normally, I don't need to "wait" for the car to warm up, I turn car on, set blower to max defrost, clear snow/ice from windshield, and go. Once/if the windshield is clear, I turn blower down for some quiet, and turn off compressor to save on fuel/range, as appropriate.)

Hooking that all up to voice operation sounds fine though (though preferably customizable, so I could have a single command to say, turn on seat warmers, turn blower to max, set output to windshield) - I never use voice operation for my phone because it's obnoxious to so in public, but that's not a problem if I'm in my car.