We are on our second new driver and second MotoSafety. We debated whether to use it with the first child, but tried it and have never regretted the decision. Our deal with the kids was one year with the device installed, and if they build a good track record we remove it. The daily report cards (which go to the kids as well as us) keep the reviews and incentives "public", and at the end of the day, it is a safety issue and that's all that matters. We are certain that both of our kids are better drivers for it. 100% recommend to all parents.