That’s similar to the great call device that I listed as option four in my post above.
Those work fine for what they are, A panic button that notifies a call center. There are many different brands and many people have them. I don’t know anything about the specific brand that you linked to, but again there are lots of them.
As I mentioned, I have had several different brands over the years, but four years ago switched to the Apple Watch. If you can afford it, it’s just way more flexible than the panic buttons. You can call anyone you like, text, call emergency services, and also trigger other events. And specific to this forum, it’s easy to integrate it with your home automation system which is not usually possible with the standalone panic buttons. Again, I discuss that in my post above.