Excellent Quality but fundamentally flawed
The dock is excellent ans securely mounts.
The only down sides are that the range of motion doesn't allow for windscreen mounting so you have to stick a disk on the dashboard.
But once done the device fits securely in place, This leads on to my second comment the charging port on a xperia phone isn't a design feature for this dock (magnet Charger)
So you have to use micro usb and this is unfortunately under a flap on the xperia phone, If sony address this issue this review would go to 5 stars.
For any other phone awesome!