Bought for an older friend who kept losing keys, to allow more sets to be covered. In the year since his first set, they've found various bunches of keys around 30 times. Previously he had to turn the house upside down only to find he'd left them when visiting someone.
I've been using Chipolo devices for years. The current generation is excellent. I like that it works with Android & iPhone, because I'm an Android user and my relatives that keep loosing stuff (key, wallet, backpack, etc) are Apple iPhone users. It's important that I can have my relatives use the share option so I can help them when they get confused by technology.
design is beautiful. I gave 4 star becaus e I have it since a month and haven't needed to find something yet. I also think the company should provide a set with key ring alongside the device, because it is not smth trivial do buy or have it left at home,and the chipolo POP needs one or smth similar to hang on the objetcts. I also have 2 others consideration: 1) thanks many meters for the app to tell me that I am "too far away" of the objetc; 2) one can save some address within the app, I thought this one could be saving points for the objects, and wouldn't ring the alarm on the app when I step back the object: for example, I park my bike at my place, and when I go away from it, the app rings an alarm when I am far away. If the bike is on my home address and this address is saved on the app, why it rings?