Worst company that I’ve ever worked with. Their employees are from outside of the US and many I’ve dealt with can’t speak English that well. My machine has given the shop where I get it calibrated error messages and the employees can’t even resolve the issue. They originally said they would refund me the installation fee, but never did! They lie, just to get you off the phone and leave me waiting at the service station for hours! I wish I would have read reviews prior to getting an Intoxalock, because I would have chosen a different company. It’s ridiculous how much time I’ve wasted due to their incompetences! I would NEVER recommend them to another person! Stay away!