This place has been around a few years, and it's still very good. Consistency is typically the bane of good restaurants, but this place has managed to keep up their good work. Quality is good, and the seasonal specialties are good. This past winter, there was a squash noodle soup (hobak kalkuksoo) that was to die for. Also, their sweet & sour mushroom (busut tangsooyuk) has always been impeccable the last 4 times we've been there.
They have a great tea selection, and do serve the more esoteric Korean liquors. They are imported, and rarely seen outside of traditional Korean restaurants. They even had makkuli, which is more of a country/rural alcoholic beverage.
The place has an irritating faux Zen atmosphere that keeps most Koreans away (mainly the music & weird uniforms). It is very expensive, and lunch is not that much cheaper than dinner. The service is mediocre for a place that charges as much as it does.
Take out lunch menu is now available for 2003. Prices are cheaper. All entrees are under $10 (which means $9.99 before tax!). Note that you must come pick it up OR they deliver within a 5 block radius.
I've taken Hangawi down to 8 because I think they have become too much of a rip off. They nickel and dime you, and even charge for a bowl of rice. This is unheard of in Korean restaurants. I believe they started their take out lunch menu because they are not getting a lot of customers at lunch. At lunch time, they are very, very dead. It has become a tourist destination, and they are only busy during dinner time. I will go there on very special occassions, maybe once or twice a year from now on. In my opinion, there are better places for less than half the cost of Hangawi.