SOO GOOD! The last time I had Korean food this good was in KoreaTown in NYC. I've been to Bibim Kitchen a couple times and the food quality is magnificent! The staff are very helpful with folks new to Korean like my friends I brought.
You REALLY need to try the purple rice, as other have recommended. It's a perfect combination of black and white rice. It's so tasty and cooked to perfection.
The spicy pork and beef are outta this world good! I haven't tried the other proteins.
They have a wonderful selection of high quality vegetables and you get to pick 6. Get the stone bowl and eat it. It's so nice and keeps your food super hot. I like the sesame oil and siracha mayo. The latter is spicy, so taste it before you mix it in.
Bibim Kitchen serves up the best bibimbap in the Valley IMHO. You should go now. :)