DJK is, by far, the best Korean BBQ I've visited in Vegas. The meat is always really fresh and not too fatty (huge problem at other Korean restaurants in town). And unlike EJay, my favorite pieces are the ones that aren't marinated...dip the cooked pieces into the sesame oil/salt and pepper mix, place on a lettuce leaf, add some chili paste, and you're in food heaven.
But even better than the bbq is the amazing, amazing kimchi chigae here! It tastes just like Mom's!! (ok, no restaurant makes it quite as good as Mom but go with me). Seriously, it is ridiculously good. Plus, they add a few pieces of dduk in each serving (a little strange but tasty!).
Oh, and the banchan is great! I love the Korean-style potato salad (includes small chucks of crisp apples...sounds weird but it really cuts the mayo).
Lastly, DJK has the friendliest servers I've encountered in any of the valley Korean restaurants.