I find it very decent support (for the price). My Galaxy Note it holds well in both portrait and landscape, despite the presence of a bag with flap. The suction cup clings well to the windscreen (not tested the supports for ventilation grid). The setting options are good.
Still, it feels very plastic. Moreover, the swivel "head" tends to vibrate a little. Finally, the support is quite large (but the Galaxy Note is not a small caliber).
In short, for the price, it is very correct.
For cons, the charger is in the street. It is a 500 mA and it is insufficient for the GN that requires a 1000 mA. GPS in use, this charger with 500 mA, the GN empties gradually.
I bought a 1000 mA (for some) and I do not have this problem.
It is a pity that for something advertised as especially dedicated to the GN, it is provided insufficient charger. Especially a 1000 mA should not cost more.
But 10 there is proper support.