I have purchased 2 of these products and they have brought so much peace of mind and relief to our life. They are very dependable, the magnets on them are strong. We have never lost one or even had to search for it. It stays put in the exact spot. Making removal and replacing effortless and quick. The app is easy and affordable. One change I would suggest is the playback to be more customizable. Not deal breaker, the price of the unit is the deal sealer. I also like that a prepaid card can be used for Payment method. No obligation or worry to cancel. Great product! Glad I found air land and sea!