I have been using it for 3 years. Mainly for the field. Fishing. I haven't pushed it to its limits to know its durability.
I use it conservatively.
2 light beams. One is a simple straight beam. The other is widened and has a photocell. Meaning, when you look closely it illuminates a little. When you look at 5 meters it gets stronger. At 30 it gets even stronger.
3 intensity levels for each beam.
If you haven't used such lenses before, you will be amazed by the light performance.
Also, with the battery!
The build quality is what is expected from a mountaineering product.
The price is a bit of a downside, but it's worth it.
Depending on your needs.

5 stars because it is the best I have found. However, it would be perfect if the option for lower light was a little lower for reading and if it didn't require three consecutive clicks to turn off.

Very satisfied with the lens. I mainly use it for camping and exploring caves, and it has never let me down. Its battery lasts a long time on all settings. It will warn you by flashing a few times and lowering the brightness before it runs out of battery. It will never turn off abruptly and leave you in the dark, which is very positive. It has 3 brightness levels in automatic mode and 3 levels in manual mode, which provide even more light. Overall, very satisfied with this purchase, and I will see how the lens holds up over time and will come back to update.

Very satisfied with the performance and duration of the battery. Strong light that is not greatly affected by low temperatures in the mountains. For long trips, a second battery will be needed.

Simply excellent! The reactive works very well in all conditions. It really saves you from constantly adjusting the light intensity.

I have changed several. This one is the most expensive but by far the best. In low light tasks, on the bike for evening rides, and on the boat. It is worth the money I paid.

As an amateur fisherman, I have had countless flashlights in my possession, but none like this one - flawless in quality and powerful. Now, as for whether it's worth its money, I cannot answer. Everyone acts according to their own pocket.