I think that system is great. Shouldn't take any change to the mind etc. Just put the bullseye on target. Should even work on rifles. In effect you have the front and rear sight in the same focal plane. No quite as quick as say an Aimpoint where the dot is very easy to pick up and keep unlike a lot of the holographic sights.

With my failing eye sight I think I will have to track one of those down for my Glock. I can see the rear sight clearly but the front is fuzzy, not what you want.