First of all, I want to state that the food is pretty good and the portions are huge. I would've been ok with a bit less food and less pricey.
I have been to this place twice for lunch with coworkers. At first I just thought the service is awful, and it takes a LONG time for the food to arrive. Eventually I realized that this place might actually be racist. If you are not asian/korean or if you come with people that are not asian/korean, you get served last. I have observed that Koreans that came in way later than we did were already served with their meals while we waited, waited, and waited some more. This observation really hit home when it was independently verified by a friend as he mentioned he observed the exact same thing. And he's half Korean. So there you go. If you are not Korean, expect crappy service and get your food after all the Koreans have been served, even if they came in way after you did.
Update: We did an experiment the other night after playing tennis with a group of friends. We went there with majority of asian people (3 of us asian and one non-asian person, with one that can at least pronounce the food in Korean). And surprise! Prompt service. So...food is good there, service is to be desired depending on who you go with....