My wife and I found Ka Chi after trying other Korean restaurants near the downtown area and we're glad we did - it's now our go-to place and we eat there at least once a week.
My wife loves the spicy rice cake and glass noodles (chap-jae). I'd advise against ordering the spicy rice cake with noodles because the noodles are just instant noodles added in.
I like their pork bone soup as well as their stone pot bibimbap dishes, especially the beef with fried egg bibimbap. You can ask them to make it with spicy beef (they prepare it the same way as the spicy pork), which I find much tastier than just adding the hot sauce afterwards.
Service is quick and friendly. The pitcher of hot rice/flower tea is nice, especially during the cold winter months.
The serving sizes are huge for reasonable prices.
We'll definitely keep going to Ka Chi.