fantastic service and a great big boy's toy. i think one a year is way too little and 4 every year is probably too much. under current law, a human must be in control of a car at all times, but what does that mean if the human is not really paying attention as the car crosses through, say, a school zone, figuring that the robot is driving more safely than he would? don’t forget to protect those devices as well. our bags were already there, waiting for us! 