Previously, I had tested "iBroz - AIRF-IX Support Auto Car Ventilation Ventilation Grid" that is no longer sold to date and was not nearly as practice: C3 ventilation grilles move, are misplaced over the car radio and it was difficult to open the branches to wedge the phone.
But there, it's really great practice!
I protected my LG G3 with a semi-rigid shell "Cruzerlite Bugdroid Case Circuit" thick enough, I slipped the adhesive metal plate included between the hull and the phone without the stick. And no problems, the magnet is powerful enough and the phone up exactly on the media. Attracted to the right place, it does not move at all, even on roads under construction.
As for the foot, it is just the right place so that I can see my GPS app (much closer than it was on the windshield). One question: the adhesive under the suction cup it can be easily detached and reused on another car? I did not really want to test for the moment since fits perfectly on the textured surface of my dashboard.
Conclusion: I really found my happiness!
