I bought it because of the price and how helpful the person was when I called for information. I think it's fine quality; it's what I would expect. As far as cost, the peace of mind is invaluable. I use it in a little different way than most people, probably. My dad lives in an assisted living community, and he has a nurse's station like fifty feet from his room. They only have emergency call buttons next to the toilet and next to the bed, though. I was finding that when he would get in trouble or fall or something, it was never in those places. I needed a way to help him, so basically now when he pushes his button, they call me, and then I call somebody at his residence to go help him. It's not necessarily an ambulance situation; it was more of a way just to get him help at the place that he's in, as twisted as that seems. I feel like everybody's always been very friendly and helpful, and able to go above and beyond to get issues sorted out. The customer service has been really good, even though it did take us a while to get that worked out to where we like. At first they would call my dad, and as soon as he would say "I need help," then they would dispatch emergency even though it's not because he's injured or having a life-threatening situation; it's just that he needed help getting up out of his wheel chair or getting to the bathroom or something. So it took us a while to get that sorted out so that they weren't sending out the emergency vehicle every time, which is probably what most people want the system for.