ADT has always been a very professional company that has given me exactly what I contract for. It isn't always the cheapest, but they have never tried to 'scam' me either. They may offer additional capabilities (extra control panels, etc.) at normal costs, but everything has always been at face value. I consider ADT to be the consummate alarm company, but like all others will have customers that aren't happy (due to a fault of ADT, their sales force, installer, or the fault of the customer).
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