This immobilized is fantastic. I use it even though I have a 10x which uses a key. It gives me an added level of security as the alarm goes off if anyone moves the scooter or tries to use the key when the immobilized is armed. This is big for me as I live in a large city where bikes and whatnot are stolen more regularly. Between this and a good u-lock, I feel more confident leaving my scooter unattended for short periods of time.
*If you want to use it on a scooter that has a key, reach out to REV Rides as they had to install it a bit different than the video shows.