My cat has been disappearing for hours and no amount of calling up and down the street would get her to come, even though she is normally responsive to my calls. I purchased the Tractive device hoping to be able to at least know what general area to look in. The Tractive device has exceeded my expectations!It is extremely accurate *if* it can get a GPS signal. If the cat is in a heavily wooded area, this device will not locate accurately, but then no GPS-based device could. Generally our area has enough open areas that it will pick her up when she crosses in and out of these.The battery life is fine if your cat does not roam for long periods of time in an area with low cellular coverage. Ours stays mostly within our WIFI range which allows it to stay in power saving mode except when she goes on her daily big explore of the neighborhood. I am charging every 2-4 days depending on how long she roams outside each day. The device does not use the WIFI to communicate, simply senses it to know that the cat is within range of home.The interface is pretty intuitive though the updates (of battery level and activity) seem slow to update at times. If the device is within Bluetooth range of your phone you get a circle that shows increasing strength as you near the device. It also has an AR mode for helping to locate outside of the Bluetooth range.My cat is about 9 pounds and this device easily fits on her collar (in provided sleeve) and does not seem to bother her at all. It can be removed from the sleeve for recharging without removing the collar if desired.Turns out my cat is roaming up to 3/4 of a mile from home, mainly in wooded area between houses and was not responsive to calling because she was out of range to hear me. Using this device I can go to her general area and find her. Highly recommend this device.