The dance club part, and the lounge part. Further, there are two dartboards and a full-sized pool table. It is mainly a very upscale place. The clientele are usually your uppity types. Generally, businessmen and the like wasting company money.
Many foreigners seem to gravitate here as well, and they are generally of a better stock.
The Koreans that go there are also either your business type, or rich kid variety. The prices are what keep the riff raff out, they are ridiculous, and unless you don t mind spending over 10k won for a budweiser, don t bother. But, be warned, many are also probably married.