I have three chi-Schrades.
One was purchased by accident when they first started showing up on ebay. The second was given to me. The third I purchased with the purpose of comparing the china model with the USA model. The model # was SQ586, the XTAC Extreme Tactical.
Upon opening the two new knives I found that the USA version opened smoothly with the thumb. The Chinese model was hard to open, to the point of hurting my thumb. The knife felt gritty when I opened it, as if sand, or more likely polishing compound had not been cleaned from between the blade & liner by the pivot pin.
The US knife was a bit sharper, though the design of the blade does not lend itself to a shaving edge due to the thickness of the steel used.
I used heavy corrugated cardboard for the cutting test. The Chinese knife was noticeably duller after about a dozen cuts approximately 12 inches long. The US knife still retained it's edge far beyond that, I finally got tired of cutting & quit. The US blade was still as sharp as when I started.
The fit & finish of the china knife was noticeably of lower quality than the US knife.
Based on that test that I personally preformed I believe the American made knife is vastly superior to the Chinese made knife.
In my opinion a knife is a tool. Many years ago I made my living as an industrial mechanic. I found that inexpensive tools usually failed at critical times, often leaving me with a damaged bold head or nut. Then I had to buy a quality tool & replace what the cheap tool had damaged in it's untimely failure.
If one only sees a knife as a sharp toy, then I guess the cheap ones will work just fine, but my knives are tools. Tools that on some occasions my life has depended on. With stakes that high, I want a quality tool, not a cheap toy.
Just my opinion based on a side by side comparison.
Dale