The collar has given us peace of mind and fascinating to see where our cat roams. It did take us a while to get set up but once sorted it's been brilliant and in the first week of use it allowed us to rescue our cat! Tatti is a 7yo cat who we recently adopted - she had been an outdoor barn cat but wanted a more pampered life. We were amazed to see how far she roamed and one time saw she had crossed the brook about half a mile from us and appeared to be having trouble getting back. We walked over the fields to approximately where she crossed the brook and called for a few minutes. We could see a narrow branch someone had placed over the stream and this must be where she crossed. She eventually appeared the other side of the water, mewing pathetically. It was very overgrown and couldn't entice her to the branch. So waded across and carried her to our side and then she walked home with us. We wouldn't have found her without the collar.