Limited menu often leads to unlimited taste. A very cozy if not small place in the middle of nowhere outside of the 'Burgh. I have been here twice and neither time disappointed. As you may have read one woman runs it all, so it does take some time for some dishes and it can get a bit pricey since you'll want to try everything. The spicy chicken is legit and my Korean mother-in-law makes a very good version.
Sometimes getting a seat is difficult, but you can do take-out.
Also it's BYOB so bring a bottle of soju (traditional Korean liquor that can be had from the big Wines and Spirits) and offer her a shot. She did shots with my friends and I on my first visit. All the dishes I've tried have been exactly the way they're supposed to taste and they are fresh.
Do yourself a favor and head out to Cecil for the best Korean meal in Pittsburgh.