I was very impressed with the courtesy extended to me. I was able to try the device before signing with LifeSafer. I was not able to pass with the "Smart Start" device. It ended up being the shape of the mouthpiece is why. I went almost three months without driving because of this. Kim in customer service was very patient and knowledgeable. Tim did the installation and did it on a day that he would not normally do an install. He was also the same person that took the time to allow me to try the device, before switching from "Smart Start." I passed on the "LifeSafer" device on the first try and am once again driving after almost 6 years!!! THANK YOU TIM, KIM AND LIFESAFER!