Ok so the sight just arrived 5 days after order, good job Botach.
First impressions are great, the reticle is clean and crisp much better than the MRO or T1 for my eyes. I took my MRO and Geissele mount off and in a hand to hand comparison there is not a noticable difference in weight, at least in my opinion. As far as size when off the rifles the holosun is not that much bigger than the MRO but once on the rifle it looks much bigger, illusion I guess.
The rifle I am running it on has a fixed larue rear buis and a fixed pri front sight. I already ordered a geiselle lower 1/3 mount for this but I think I'll just use that for another build. I really like the way the 65moa reticle lines up with these sights, with both eyes open the fixed sights literally disappear, and so does the optic due to it having a larger objective lens than the MRO. I am happy with my purchase so far.
I hope to get out to the range tomorrow and see how it performs.