Expensive but very good, powerful and user-friendly. Its beam is between wide and focused light or if you prefer, both together. The light it produces does not strain the eyes, it is very pleasant. It provides enough light for small scales, practically in the dark you do not need very powerful lights unless you want excessive light or to be visible. The red light (in three scales, small, large, and flashing) is very useful.
I cannot judge its quality yet, but the threaded battery cap tightens and secures exactly at the end of the lens body, which indicates proper and quality design.
It fits very securely in the headband case, the extra security with the elastic that hugs it is very good, and I would not say it is tiring due to its weight, mainly from the weight of the battery, because the lens body without the battery is negligible. I do not do night running, so I do not have an opinion on this activity, but I do not think it would be bothersome because it is very stable in its case.
The headband straps are very good with several adjustments and I did not feel any fatigue or annoying tightness. They hug the head correctly and fit nicely. They also have reflective elements.
The magnetic charging has its pros and cons. Pros, it makes the flashlight completely waterproof. Cons, you necessarily need its cable to charge it, which is very short in length. Only a cable is provided in the package, not a charger.
The battery (3400mAh) seems to meet its specifications, but it is too early to judge it, however, it does not seem to discharge on its own.
Its great advantage, I believe, is its ability to be used alone, as an EDC flashlight or for various tasks without the headband, and to use its strong magnet to place it on metal surfaces if necessary to have hands-free.
I will come back if I find something different, so far very satisfied.