Then it is very effective as the other reviewers say: it is very easy to ask their phone or removing it by dragging and once stuck to the magnet no risk of dropping out.
And nothing to spoil it is discreet and design ... especially when compared to universal suction mounts that dirty the windshield, peel off after a while and hinder the same view when there is nothing above.
So frankly, I do not find expensive considering its features and in all cases cheaper than having to buy specific support for each device.
The only thing that bothers me is that the tablet to stick to the back of the phone, even if it is very fine, that it no longer rests flat on a table for example. Deeply as compatible shells arrive to other phones or the iPhone that manufacturers provide a magnetizable area of origin ... who knows?