I've tried Korean fried chicken quite few times and I was disappointed. We even supposedly have quite a bit of good Korean restaurants here, but alas KFC or even air-fried frozen chicken always won me.
What city have you tried it in? Its relatively new in the US and it was becoming trendy so there are a lot of places that still do a pretty bad job since most people don't have a baseline. Its basically like sushi 15 years ago. So far in Chicago, I've only found one place that comes close to what I had in Tokyo's Koreatown (which admittedly isn't actually Korea)
I remember going to place perhaps right next to it was being unimpressed for countless time. Might try soon!
Though whenever I'm in CBD I go to Boracay Garden - filipino food was my biggest discovery in NZ (admittedly it's only two same dishes - pork sisig and chicken adobo).