I have to reorder me this mount for my Becker Navi, since the first was broken. She has kept about 2 years. Then the "locking lever" broke off the suction cup. I have used the support in two cars, they became so frequent discounts and been mounted. Nevertheless, they should not break actually after 2 years.
Otherwise, there is a super bracket. Advantage: The charging cable is fixed to the bracket. By plugging the Navis in the bracket is equal to the power supply secured. No additional plug in the power plug needed.
