I've got a Leupold Delta Point Pro. Had it on a Glock 34 MOS at first, but have moved it to a Sig P320 X-five. I've been playing at the range with it, and have begun shooting carry optics with it. Like many, the big learning curve for me was/is finding the dot on the draw. But, I've been getting better. It is a lot faster once up and "found". I've been sidelined the past couple of months with a broken foot, so I haven't been getting any match time with it lately.
I've also got a Vortex Viper on a Ruger mark III and a Burris FFII on another one. I've never had a problem with either.
I haven't moved one to a carry gun yet, but I'm considering it.