Tl;Dr: The performance and build quality are excellent. I love the USB-C charging port instead of a proprietary magnetic charger. It’s relatively compact for using a large 21700 battery. The voltage immunity, switch, headband, clip, and ergonomics are good. The beam is floody and efficient (cool white, ~70 CRI). The price is fine. I dislike that Moonlight, Turbo, and Strobe are memorized and the mode spacing could use improvement. Overall this is a good tool headlamp for real-world use where you need lots of reliable light for a long time.