I'm not a big open sight kinda guy. I was weaned on them when I started out shooting, just to get the basics down. Due to primative regulations I also used them on my flintlock muzzleloader, successfully I might add (X4).
I like red dots better though. Gives me the feeling of a more precise aiming point. I have one mounted on my Ruger SRH .44 mag. I can print 2" or better groups with it at 50 yards which is enough for the ranges I work at here. Harvested a nice button buck this year at about 40 yards. Bullet went right where the dot was. It doesn't really enhance your vision in low light and can actually hurt it depending on how high a setting the dot is on. I prefer the UltraDot.
All of my rifles wear scopes. While I think I'd rather have a dot sight on a large bore handgun I went with a 2-6X scope on my 15" .308 barrel. The reasoning here is that I feel that a scope will be able to obtain more accurate shooting, if I do my part, out of this set up.
Ranger413