I have been looking at this for a long time and finally decided to order a set to test them out before ordering sets for all the vehicles. When I received them, I was very pleased with the initial feel of quality. They seem pretty rugged and well sealed to keep water out. Con: To visually steer traffic around you, they need to "spin" in a clockwise direction, however, these "spin" in a counterclockwise direction that could visually steer someone into the back of your vehicle instead of around it. Of course, if you are buying these in a European country, they are perfect. This can easily be overcome by placing them upside down, but if you need to place them on your vehicle, you lose the use of the magnet. I would think that this would be an easy fix on the logic board for the factory.