Bests & Worsts Reviews from Amazon

This is a great concept, small, easy to set up and use except for one thing, it doesn't work very well. This is my second device and once again very disappointed. It gives false alerts and once my dog leaves the area it can take up to 10 minutes to notify me, the area my dog is in could be a hundred yards off or more according to the map on my phone. The customer service tells me that there is a weak AT&T signal in my area but I don't buy it. Now for the really bad part, the customer service is as Very,Very bad and that is being polite. I have contacted them at least 5 times and it is a minimum wait on the phone 30-50 minutes. I sent an email request to resolve a problem and it took 7 days to get a response which did not help in any way. When I called today they said it would be 48-72 hours for tech support to get back with me, so here I am with a unit that doesn't work and waiting for days. I expressed my concern to the customer service gal and it was obvious she could care less, not even an insincere "sorry" If Whistle came up with a unit that worked I would be the first to buy one but for now I will wait for them to get back with me with another song and dance.