The points at which the phone rests are padded with foam - no scratches so.
Negative, I find that you have to adjust the bracket and the angle from the phone to the driver rather fiddly. But that makes it theoretically not as often.
What I am however really bother that you do not even give the phone can rotate to landscape without the suction cup settle again from the disc.
Here, perhaps, would have been a better solution, a ball head.
For a star deduction.
Who does not absolutely need this feature of buying here for a decent price good car mount.