Build quality seem good. Operation of the brightness and reticle is easy and works well. I was able to zero and it held zero so far through 500 rounds. The glass is clear. However, when I use just the dot, which I prefer on this sight, you can still see the outlines of the other reticle options. I feel like that shouldn't happen, and it doesn't happen on the other multi-retie sights that I have. If not for that, I would have rated the sight higher.