This is my 3rd time back to this restaurant and it never disappointed me. Between 2 people, we ordered the soondae jeongol during 2/3 of our visits. The amount you get for 2 people will definitely fill you up, as it came with 2 bowls of rice, and the soondae is made of glass noodles itself too (which was my favourite part of the meal).
Naengmyun is a must try here as well, as it's considered the best around town.
The best time to go for dinner is around 8:30 or 9, as there's no wait time since they close at 10pm. Service was really quick.