It is very bad, a cheap Chinese product that makes noise as soon as you hit a pothole and so far my phone has fallen 3 times, you have to tighten it excessively for it to work properly but still you can't be sure about anything. Just don't buy it

Very sturdy and durable construction. The phone did not move at all when I had it on. It is metallic and has small sponges at the four points where it holds the phone. These might come off at some point. The only negative I found.

Quite easy to install, my phone has never fallen even in potholes, and even during a bike fall while the phone was stationary, it remained intact.

Very good construction, keeps the phone stable even on rough roads. It may not be suitable for phones with very thick cases.

Very good phone attachment on the base, as long as you keep an eye on tightening the side screw well. If you leave it a little loose, your phone will slip off

Very satisfied, only with a combination of strong vibration and not a good tightening of the base, the phone has fallen. Recommended.

Edit: I recently bought an e-MTB, I decided to get a different mount for a change, but ended up throwing it away and getting this one again. The phone stays in place even on rough terrains that I have been to (I am not a pro in any way). The funny thing is that from the same routes, the GoPro mount (brand new) ended up breaking instead of this specific phone mount. You just need to tighten it well. Personally, I also have a silicone case on my phone, maybe that helps in some way, thought I'd mention it. Buy without fear.

Perfect! This mobile doesn't move at all, neither does the base on the handlebar.
Easy to use and well-built with aluminum, without any extra weight on the bike.
I recommend it! Value for money

Very good build quality, keeps the phone stable and can also accommodate smaller phones. In Athens asphalt conditions with some vibrations, it hasn't noticed anything, I recommend it

Excellent aluminum-made base, elegant and very beautiful. In an urban environment, the smartphone (Xiaomi Poco) remains stable even on rough city roads. It has not been tested yet on any mountain trails, but no matter what case you put on, I believe it's not worth risking the smartphone in a fall. Truly a remarkable product and I highly recommend it without hesitation!

Quite a good stand.
Minus one star because the screw it has to tighten the mobile phone is loose and makes noise.

Sturdy base for everyday use, the phone doesn't move. If you want it for racing use, off-road, generally in situations with lots of continuous vibrations, etc., without having tested it, it gives me the impression that it doesn't handle it well. However, it is a cheap and reliable solution for someone who uses a bicycle for leisure rides, commuting, shopping, etc.

It is quite good and stable, the mobile phone does not come off at all even though I have dropped it many times, it always stays in place

Awesome product. It has excellent build quality. Once you put your phone in it, it doesn't go anywhere. And with its foam, it doesn't damage the phone when it's dropped.

Simply awesome!
I have put it on a racing bike and despite the vibrations it receives from the terrible roads of Athens, it doesn't feel a thing.. the phone is rock solid in its place.. Amazing tool, sturdy aluminum construction!
Children, with closed eyes

After a lot of searching, I ended up with this base for both a car and a bicycle.
I bought two bases at the same time without shipping costs for 16 euros.
Sturdy, it doesn't move a millimeter on mountains and dirt roads.
Discreet, completely invisible made of aluminum, it looks much more expensive than it actually is.
The only thing that surprised me is that five days later I see it for 12 euros each.

Very good and sturdy construction. It was acquired for an electric scooter and so far it has not let me down. It can be installed on various handlebar diameters, it has adapters. It is made of aluminum 6063 and does not rust. Easy installation.

Excellent. I have it on an electric scooter. Nothing moves, not even a millimeter! All metallic, incredible grip. I recommend it without any reservation.

Excellent quality and very stable! I have traveled several kilometers and used my mobile phone's GPS as well as other functions. I am very satisfied