I'll admit that I am a new "convert" to Korean food, and that I have very little context to judge this place in relation to other Korean restaurants. My brother took me to Cho Sun Oak (4200 N. Lincoln) about six months ago, and I have become enchanted with it.
Granted, they don't make it easy...the restaurant is, shall we say, VERY rough around the edges. (DON'T go to the washroom -- through the kitchen -- if you are weak of stomach.) Service is geared toward the mainly Korean clientele. You have to ask for the "Korean versions" of Kim Chee and other side dishes to get the good stuff. But once you crack the code and get past the non-Western "charms," the barbecue and table-top cooking are some of the most addictive flavors I have had anywhere.
Are we both nuts, or is this place one of the better Korean restaurants in town?