Unfortunately, mine came non-functional out of the box. It's a shame because it looks great, but if it doesn't work then what's the point.

Looks good with nice trades. Nice and solid with the attached QD mount. One of the flip covers was broken right out of the box, and the screw on cap for my AA battery is fiddly - you need to have it just right, not to loose, not too tight or else the dot won't work at all, or will be very dim and the brightness levels won't change. Finish is mostly good, few small patches of clear mystery goo that don't want to come off. Looks good from a foot away, seems to work well once you get it set, and it runs on AA. Good enough for me.