have the Mc 1.0+ now just over 2 years, and am very satisfied. Before about a week, I had a sudden no indication of the speed on the speedometer ... batteries for the first time changed and still went nothing. Since VDO devices have 5-year warranty I have sent the speedometer. What can I say? Two days later I had a working speedometer at home. Free to Use was still 5 batteries and a sensor! That's why I'm very pleased, not only the speedometer in itself is an asset, but also provide the service. I would buy the speedometer at any time, that's for sure.