Only downside, after a few days of use, the cup tends to peel, rolling my carrier falling. Fortunately, the phone was on. You should know that on this model, the suction cup is self-adhesive and suction power is far from being as effective as GPS supports major brands.
Personally I use it on the car dashboard and not the windshield, so it tends to fall from time to time when I do not use it. I simply took the reflex when I ask my phone, remove the holder and place it so redo the vacuum with the suction cup.
And at such a low price, we mainly looking for a small discreet phone support that can be used to troubleshoot occasionally. It fulfills its function!