This saves tons of money in legal fees. You may feel just great, but when the blood level is over the limit you are in for jail time, monetored sobriety, and lots of legal fees.
Given that I got the device mostly for myself & my wife, having an extra 10 mouthpieces might have been overkill, especially since they wash out easily.
I am a treatment provider serving clients in three main areas, Domestic Violence, Substance Abuse, and Parenting. The tubes allow my clients with alcohol issues a quick and easy way to monitor sobriety on a daily or weekly basis as needed. Clients have commented once they get the hang of it it is much easier to use than other agency equipment. It has been a real plus for my clients and they love the ease of use and accuracy of testing.