Does anyone use a Medic Alert system?

Considering the balance and falling issues with CMT, do you use something like a medic alert, where you can call for help, or it calls for you in the event of a fall? If so are you satisfied with it?

I used to have one but my social worker didn’t think I needed it anymore since I have home health care help in the building where I live. But I liked the security of it when I did have it.