I've been shooting reflex sights on handguns for only about two years now. I find them to be a fantastic option. After some time, I'm now faster with a reflex sight than traditional irons (as confirmed by my shot timer). I find it easier to shoot on the move with a reflex sight (No need to obtain equal height, equal light as with traditional sights). Also shooting with my non dominant hand I have less issues with find the dot as opposed to lining up sights with my non dominant eye. Both eyes open shooting a reflex sight opens up field of view. I'm shooting more with both eyes open on traditional sights but still find the reflex sight easier and quicker.