Wanted to take a moment to throw a big thank you to the Epic Systems Team for their awesome Alexa Driver. I finally caved this past week and spent the money for it after getting frustrated with delayed responses on the stock C4 Voice Scene driver. My dealer had it loaded a few minutes after purchasing and programming was quick. The improvement in response time is amazing and I no longer get the dreaded "device failed to respond" after waiting 5 seconds for a light to turn on. To anyone on the fence, don't hesitate, huge improvement.