Went to Kang Hodong Baekjeong last night so Thursday. Checked in at 6:20, quoted 1 hour, seated at 7:40. You can download the No Wait app to see your place in line. We just ended up killing some time by getting a drink at Boiling Point, walking through Mitsuwa and Daiso. Then we walked back and waited 20 minutes or so there by the restaurant. TONS of people outside.
Between the 2 of us got a small beef combo, small fried dumplings, and lunchbox. We probably would have been fine with just the combo, tons of food. Food here up to par with other locations, I'd say better than my last trip to the Buena Park one. The seasoned boneless shortrib, man I forget how good it is here, so flavorful and when they char it up last minute, heaven. Server was always on top of it, didn't cook a single thing, and meticulous. With that said, service here isn't "friendly" per se but efficient. Love the egg moat, but if you like it runny, watch it as it can get overcooked pretty quickly. Beef combo small on it's own was $60.
Tip here is to avoid Fridays and weekends or either way, be prepared for a wait and just kill some time walking within the plaza to keep your sanity.