Korean guitars =
the frets are over leveled and not recrowned
the ends are over beveled so they don't have to be dressed
the neck profiles are not as comfortable [and no doubt intentionally]
the clear used on the necks is not silky
the finishes have plenty of blems [usually]
the hardware is also MIK and made from "Korean mystery metal" [as it's been called, it's just a cheaper spelter]
the electrics are "cheap"
the cut and fit of all parts is not bad though.
I've seen great players playing MIK and you'd think it was the finest guitar made.
I've seen hacks playing great expensive guitars and sound like crap.
Bottom line, the guitars are inferior, but it's the hands that play them that really matter.