What medical alert system do you use and are you happy with the service?

I am only familiar with the service from Medical Home Alert and it is exactly what it says it is. Press the button, an operator answers with your medical history, and takes appropriate next steps to call family , 911, etc.

All the services are pretty similar, you need to check out testimonials and the contract terms. Link below is for FTC guidelines on how to buy a system. Hope this helps.