I had lot of hope in ADT when we first installed the system in my house. But it proved to be wrong. Let me tell u that they have got the worst system and service in the world. It worked well for a month, then it started being a night mare for us. There was always a red light blinking on the system. As per the instruction it marked an intrusion. I am fortunate that there was no noise coming out of the system. I thought of informing the company about it and contacted them. They fixed an appointment 'according to my convenience' and... read full review »