Once you get set up, you're good to go - Vortex StrikeFire Red Dot Scopes AR15

The windage and elevation adjustments didn't seem to go the right direction all the time. I sighted in at 25, 50, then 100 yards and was happy. The I dimmed dot brightness by half, and shot higher a couple inches at 100 yards. But at the end of the day, having a better understanding how things work, was fairly happy. the 2x magnifier is handy.
Pros: fast, clear target aqutisition
Cons: finicky set up, dot brightness changes point of impact

This review was written in the old system and had content requirements that are different than reviews written today.