I eat lunch and dinner here several times a month. Yes, there is only one server but the place is small and I thought the service was quite good. The side dishes are usually very tasty and I think their radish kimchi is one of the best. It's pretty simple in their offerings but the value is great. I've tried just about everything on their menu and sure it's not the best Korean food, but I'm from Los Angeles, so my expectations are high; however, for Las Vegas, it's better than most when it comes to value.
I used to go to DJK but now go to Mr. Tofu and sometimes to HoneyPig. Maru was terrible.