Good solution certainly disadvantage

The bracket holds what the seller promises.
Very good mechanical design.
A secure hold for the I-Pad in the "spider".
Vibration caused by uneven road surfaces will hardly notice.
Sucker excellent, no re-tensioning lasts for many days necessary.
++ Positioning outside the field of view through the windshield possible!

Disadvantages:
For vehicles with concealed passenger airbag in which to open the entire dashboard in the dashboard airbag deployment being blocked by the holder!
So only suitable for vehicles with extra flap in the dashboard for the front passenger airbag if enough space remains in order not to block this door.
In principle, this is true but probably for any type of windscreen mount due to the size of the I-Pads.

When used in more vehicles with the installation of which is to be covered each time consuming due to the necessary adjustment of the support bar and the discovery of a place in which a minimum of controls and indicators in the middle of the dashboard area.
The transport of bulky mount in a suitcase needed some space.

Overall, for me anyway, the best solution.
Each bracket has its drawbacks, you can not just have everything.