It does its job as it should and as described.
I use it for running at night on small suburban roads where I occasionally encounter cars. It makes me feel safe. I put this on the front and another smaller one on the back with a magnet, which is also sold here on the platform.
It is very bright (brighter than the one I put on the back) and especially if in other situations you need to turn on the steady white light, it is much brighter than a phone flashlight because it has 2 LEDs.
It has an operating button that you press continuously for about 3" to turn it on or off. When you press it briefly, it changes from steady to flashing to white and to red.
An advantage compared to those that use a CR2032 battery is that you don't have to look for it 1-2 times a year to replace it. On the other hand, when its battery dies, you will throw it away. But if you use it with flashing light and not steady, it lasts quite a while, it needs charging about once a month, so it will last 5-6 years and pay for itself.