So far so good with my SRO's
Just throwing my two cents in in regard to the SRO. So far, my two SRO's have been spot on perfect. The buttons are definitely stiff on both, but they work as they should. They are both 2.5 MOA versions. One serial is approx. 6,500, and the other is approx. 8,900. Both mounted on a Glock model 45. One has about 2,000 rounds on it, and the other has about 1,500 rounds. Still putting them through their paces, but good-to-go thus far.
On a separate but related note, I have 4 RMR'd Type 2 pistols, with significant use on 3 of those 4. They have all been 100% reliable thus far. I retired from my LEO career this June, and I am unaware of any other LEO's at my former agency having any issues with theirs. I realize it's not a significantly large sample size, but those are my own firsthand observations. I also never saw a type 2 go down during any of the combat courses I enrolled in. Again, just firsthand observations.
My only unlucky purchase was a Holosun 507c, which broke on the first day of use. Dot failed, and could not be reactivated despite all attempts. I must have been the oddball, as most others seem to like the 507/508.