FWIW, my oldest is running an Olympic K68 that had a couple options thrown on and we've had no issues with fit, finish, or operation. We ran the rifle in Texas last season and she put 3 deer in the freezer in 3 days.
I have visited Olympic Arms myself several times and have been given a full tour of their facilities. They are a nice group of folks who are passionate about their work. They mill their own uppers and lowers from forgings using digital milling machines and make their own barrels. All metal finishing is done in house, except the wet transfer stuff you see on certain models.
They don't chrome the inside of their barrels, which from a mil spec perspective is a no no, but their concern is more with accuracy. Side by side, non chromed barrels tend to be more accurate, as trying to hold the chrome to a thickness tolerance is difficult.
I like their product enough that I added 2 K16s with matching uppers in 6.8 and 5.56 before I deployed last May, and just placed another order with them.
Are they Noveske? Nope. But your also not paying Noveske prices.
Olympic does have a bad rep from their products produced over a decade ago, but I've not found anyone with recent bad experiences.
Add to all of that a lifetime warranty...