I went with Intoxalock to save money but didn't. i went with the least expensive svc. But they have taken more than they should and wont return $. Poor design mouth piece comes loose, can fall off while driving may cause accident. If it falls out at night, you better have a another handy. Distracts you as if you were texting, very dangerous. Replacement ships 2 days before present device expires wont allow time if UPS has delay -if expires cant move car!! Cust. svc. sucks. cant use hand sani or mouthwash within 15 min of use. Occasionally registers improper breath pressure. Bad device bad customer service.
Reason of review: Bad quality.
Monetary Loss: $150.