I bought this mount a couple of weeks ago and i am very happy with it. The mount is made of silicone and can be easily adjusted to the shape of the cars dashboard. It does not move at all, even when going through narrow turns at high speed. I have a 3 series BMW and a mini cooper. Works perfect in both cars.
When stopping somewhere you just take the nuvi with the mount and hide it in the footwell. When not needed you just fold it and put it into the glove locker. I would buy it again.