I was looking for extra support compatible with maximum devices (Smartphone, GPS ...) to let in a little car that I use. I chose this medium especially for its price. Well I am very happy with this purchase. The product is finally not uglier than another, its windshield suction cup is effective and is easy to use. It is compatible with many devices as I wanted. He even managed to hold my Max Wikango without clamp nappuie any button. The rubber gripper appears preserve the scratches devices. The only complaints about this support is its lack of rigidity. The devices he holds vibrate more or less according to the vehicle speed and road conditions, in contrast to the support of my Garmin GPS. For a little over EUR 6, this disadvantage is forgivable and in all cases the device remains "usable". The plastic frame of the media is without doubt-not thick enough.
In short, the price / quality ratio is excellent and very convenient grip system!
I think it would be worth also market a premium product (containing more rigid vibration) while maintaining the clamp system.