If you live in a state where it gets very cold out, you'll be up sh*t creek without a paddle. Then, had a faulty unit, it got replaced with another faulty unit. Both times mind you, I have to fork over money to have it towed to an intoxalock shop and BOTH times was told I'd get reimbursed. NOPE, I instead get credited the amount on my account so needless to say, I had a terrible Month and basically got one less paycheck for the cost of living. Plus on top of it all, cuts your battery life in half. Nobody there cares, it takes forever to talk to someone that doesn't understand you anyways and I will not have a total of $700 in tow bills added to my account that ends in 2 months…odds I get a refund on over paying?!? Ha