There was great choice. Although I have always had good experience with Mumbi, I have only once ordered a Galaxy S5-specific holder from another provider. Big Mistake !!! The thing was a fixed frame made of durable plastic, where you had to push in its 460 expensive device with violence in this context. After slight scratches I have caused to my smartphone on the first try, it was sent back immediately.
Now this universal car mount from Mumbi was needed. It is, as can be seen here in the pictures. Well made, robust and absolutely vibration-free! This thing will not budge on the disc. The suction cup adheres properly fixed on the disc. The remaining parts are also designed so robust that the thing can not vibrate or wobble. It has no ball joint or similar construct, therefore it can not wobble. The moving (rotating) parts are secured with two large plastic screws that can be turned by hand. All thing you have to hold with one hand and rotate the bracket with the other screw. Therefore, it is now important to set the correct position before driving. Placing and removing the smartphone works with one hand. Device reinsetzen, press the left and right, it's been fixed. To remove a slight push of the button on the side is enough.
Speaking of which, the colleague who has found this mount too large and therefore returned with a negative review, I can recommend scotch tape. If you do not have a big and heavy car mount, you'd simply klebst your smartphone with scotch tape on the disc.