ADT is the best company when it comes to security. They have a lifetime warranty on all equipment, 36 hour service call response time (try getting those other companies to do that) world class service!! what do you expect? ADT is securing the White house, The Pentagon, and Fort Knox!! Everyone i have talk to that has ADT (about 100 people) has the same feeling about this great company. remember, people only like to talk when they have a bad experience, very seldom do people share their good ones. Thats the only reason these other reviews are bad, not because ADT is a bad company by any means.