I just tested mine again today, here are the results:
It has a special lock function that unlocks the car and disables the security system in the car, that way you can get into it and don't have to worry about alarms or the engine shutting off.
When I put in my key and turn it as I would the ignition the starter makes a grinding sound. Lesson? Turn the key only so the displays powers up, not all the way like you would start your car.
I guess maybe my starter is different and more advanced, I don't know, either way, I don't think Id get one myself if my car diden't come with it, I really don't have any problems at all starting my car when it's cold, maybe starters are good for really old cars?