Good quality, suitable for my system Xperia Z1. Too bad there are no instructions.

* The system "deploys" gentle to fit the shape of the smartphone, there are rigid foams for the lateral contact areas (hope they will be strong enough in time) to firmly hold and smooth the smartphone on the sides. And - importantly - without pressing the buttons (start-up, camera shutter button, volume), while leaving the necessary clearance to connect the car charger to the other side.
* The gooseneck seems resistant, it is not cheap and has no game. A check as to its stability over time in normal use (I think it has to go if we did not spend his time to play with).
* The suction cup holds well.
* The support easily rotates on its axis and can be locked both horizontally and vertically. Useful to have the configuration phone or GPS, depending on the need.
* I have not tested the adhesive backing Dashboard, which is actually a board the size of the cup or the "tchitchous" to secure it to the air (it is winter and you have to heat - but not the smartphone!).

One point less for the absence of a record for an optimal use of fixing accessories with examples can be puzzled when unpacking and outside the vacuum use, ask a few questions for unpacking Read the what, where and how to without damaging the accessory ...