I have had this device for almost 4 years.  I experienced lockouts and readings that were impossible to correctly detect based on this devices substandard engineering.  The lockouts happen close to the 90 day mark where I would almost qualify to remove the device then some bogus missed blow occurs, throwing a code and starting the 90 day process over again.  Many times it occurs without the vehicle turned on, no keys in the ignition, no one in the vehicle. This is clearly an entrapment to keep the cycle going so that Intoxalock (and whomever benefits from kickbacks) can continue to trap people into monthly service fees and fines.  I've never seen or experienced such an enforcement of a bogus product that exploits people in a vulnerable position and literally compromising daily function and livelihoods, forcing vehicle breakdowns requiring expensive repairs, terrible customer service in such predicaments, unreliable vehicle operations, unnecessary angst for drivers trying to comply.  This must be addressed and Intoxalock should be held accountable for this exploitation just to make money.  This is unjustifiable and Intoxalock should be held accountable, just as the customers are!