Works great and holds my iPhone 7plus even on bumpy road.

Magnet is pretty strong, however with bumpy roads, phone tends to slip a bit

Once in a while on extremely bumpy roads the phone has rotated a bit, but has never fallen off.

I was worried my phone would come off the mount on rough roads, but this has NOT been an issue

My phone doesn't move at all on bumpy roads.

I put the magnet on the outside of the phone's battery cover, as instructed on the box, and yet the phone often slips off the magnet, especially on bumpy roads

and it has never fallen off, even on a bumpy road.

It holds on to the phone even on extremely bumpy roads

Holds my phone even on the roughest roads!

The magnet is strong enough to hold your phone in place even on the roughest road or sharpest curves.

The dashboard and the mount itself are both clean but with a heavy-ish phone (Samsung Galaxy S5) coupled with bumpy roads and the suction will fail at inopportune moments.

easy and does not fall off the window like most of the rest and the phone does not drop off either, even when driving on bumpy roads.

The device doesn't move at all when placing or removing my phone from the mount and it works great on bumpy roads!

a little bit ago I rolled my car due to poor road and weather conditions

The magnet is very strong & holds my phone securely in place, even when driving over bumpy roads.

Scared it’ll fall off when you take a sharp turn or go down a bumpy road

Works well, only when there are problems on bad roads the phone drops.

Even on rough beaten up bumpy roads and railroad tracks the holder stays put

Phone holds and didn't fall off on bumpy roads.

but the phone starts to turn to one side or the other while driving even on a smooth road

I drive a commercial truck and have a Kyocera dura force pro( a great phone but a little heavy) this hods great even on rough roads.

Compact and doesn't fall off even on bumpy roads

Put it on my windshield, solid as a rock on our bad roads, even held on tight with my 7" fire tablet!!

My big Samsung Note 4 has stayed attached even on rough roads but it's a step to far for this to hold the phone off-road.

Even on rough roads and going over railroad tracks

an iPhone 6S Plus n it holds it steady on even bumpy roads

I took the mount and placed it on the dash board after I clean a bit the dash board.it sticks very firmly and hold my phone without any problems even in bumpiest roads

And that was on regular street driving: would be even more unstable on rough roads like the ones I've been on here in hawaii

The job required a daily roundtrip drive over a patch of rough roads in a 4×4 (stock Jeep Wrangler Unlimited).

The only downside (and it's a very small one) is that the "neck" of the mount isn't at rigid or stiff as I'd like - on some roads, the phone has a slight vibration that's slightly visible on the screen

If you have a large phone like a Note 8 or S8, make sure wherever you put that magnet in your case is lined up with the mount as well as you can, or a sharp turn can send your phone flying

As long as the mount is positioned on my dash where the dash can support my phone, it works as it should.