I haven't used it yet but happy to have them available just on case.
Certainly has strong air extraction. Was simple to put together.
Won't really know how it really works until I have a choking episode. But makes me feel like help is near me now.
I haven't had to use it yet, (Hope I never have to), so I can't really comment on it. My only suggestion would be to offer the 6-pack of carrying cases when you order 6 Anti-choking devices. I had ordered 6 devices and as I was finishing up my order I got the "Before you go" offer to add 4 carrying cases to the order. Just saying, The option to add the same quantity of each would make sense.