Looks like a great device, won't know how great it is until I have to use it.
If it works. It great because a lot of people live alone or are alone at home.
I wanted this device because I had a friend that passed away from choking on a piece of ham. She got help fairly quickly but they were not able to save her. I believe she would be alive today if they had a SavLix. I bought 5 of them to give to my family and I keep one in my vehicle just in case I am near someone that is choking.