I worked ADT for many years when I started the service was excellent all the customers were pleased Then Johnson’s control purchased the company around 6 years ago that’s when the service slowly got poor. They chose to go fully wireless system and increased remote operators to resolve issues on the phone hoping they would have less engineers on the road the systems there using are cheap unreliable also they take on employees mostly with no knowledge of security systems they pair them up with another employee for a while and they send them out on their own Their are know qualifications to be a so called alarm engineer