I had one the illumination switch broke in my soft case before I even got to use it. It would neither have a positive on or off notch in the switch so the battery would die because it was left on or the illumination would turn itself off. I repeat not one shot only mounted it. I put the rifle in my drag bag that's padded on the back seat of my truck, and out to my shooting spot. I was discouraged to even try it out. 3 ish weeks turn around. It was brand new never even got to use it. I promptly sold it thanks to the US dollar I luckily didn't loose much money due to the timing. I somewhat wish I would have tried it out as the glass seemed very clear. The knobs had a nice positive feel and click. Either way it pissed me off. Still wouldn't mind a razor but I got a couple uso's im assuming there probably better after my experience