I was very happy:
Quick shipment,
French manual,
image inversion (handy for rear camera)
we can put a total of two video inputs (and when I put my back mark, the camera is in focus)
easy installation (powerful clip to fit on your old mirror)
Disappointed:
Cable provided too short for a sedan (allow good distance)
I recommend this article I'm very happy, and given the price, it would be stupid to miss