I work in construction and go down alot of bumpy roads I have never had it lose suction or my phone fall out.

Adheres very well, doesn’t fall off easily even when the road gets rough

It is secure and stable even on rough roads.

This product works as advertised, have attached to the dash in my car and won't come loose even with going over rough roads.

We have some of the worst roads in the country, and the phone holds securely to the windshield of my StepVan

But other than that, it adheres to my windshield great and keeps my phone secure even on bumpy roads.

It holds super steady even on bad roads

The other issue is the plastic nut that you tighten behind the phone occasionally loosens after lots of travel especially in bumpy roads

I'm a truck driver that drive on bumpy roads

Holds fine even on bumpy roads

I originally had a small vent holder, and I got this to be able to keep the vent clear for AC, but the backing seems to soak in the heat from the sun as well as from the phone, which is causing the phone to overheat and slow down

Received fast, works as it should.

Hasn't fallen off as with other products.