My experience with Sightron is limited to one scope. I bought an SIII 8-32x56 used off the EE for my Rem 700 5R in 308. I'm really not brand biased when it comes to optics, the only thing I've come to realize over the years is that the more money they cost, the better they are quality wise and optically. No exceptions.
What struck me immediately with Sightron is the conventional, run-of-the-mill look that all Japanese and other offshore scopes have. If you've looked at S&B/Swarovski/Leica/Zeiss, you'll know what I mean. The lines aren't as refined or smooth. Think Bushnell,etc.
Optically it was good, but not on par to my Zeiss Victory, S&B Zenith, Swarovski Z6, etc. But then it would be unfair to think it should be, though that's what many that buy them seems to keep wanting to pound down our throats on these boards.
What was the final nail in the coffin is the fact that it read "832x56" in bright white letters on the objective bell. Any company worth their salt would surely not omit something as obvious as a hyphen, otherwise what else have they forgotten? But lo and behold, a quick search of google images shows all of them to have this "glitch". I sold it and haven't missed it.
As you say, to each their own. I just find it humorous when I read these incessant posts about Sightron being on par with the best out there, regardless of price. It's simply not true, even if the Sightron dealer says otherwise. Maybe "Savage Syndrome" is creeping into the optics section.