What features would I like the most. All of it. Control my lights at home from the car, Have alexa play my pandora radio, I'd figure out how to get alexa to voice control stuff in my car. Sounds like a nice pairing with some ESP8266 Units running on DC power to say control my windows, maybe pop the trunk, I'm thinking the possibilities are endless. I bet I could even voice control the radio in the car with some tinkering. B ut this would have to be the center piece of it all.