Nice optic, good glass - Vortex Defender-ST Enclosed Solar Micro 1x22.5mm Reflex Red Dot Sight

I can't speak to long term durability as I haven't had it very long and it is mounted on top of a rifle scope vs pistol, but glass wise and clarity/ease of use, very similar to the Holosun EPS I have on my Walther PDP. The blue tint is a bit less than the EPS which is nice, but the dot is still plenty bright in direct sunlight. So long as durability is good, I would honestly go with this over the EPS due to cost and marginally better color of the glass. The only thing that I would change on this particular one, is a different mounting system, but for my use, the Delta Point Pro mount worked just fine with the Reptilia scope ring mount they make.