You need to order at least a beer tower to sit in a room. Otherwise you sit in the seats in front of the monitor. A lady session isn't 60 minutes but 50 minutes, for 300,000 dong. I ordered a 2-liter (1,239,000 dong) beer tower, but it felt like only about 1.4–1.5 liters (20% foam to start, and once you remove the ice column in the middle it shrinks again). I wondered how I'd finish it alone, but I did. The lady had two beers.
One of the lady's friends sat for an extra 30 minutes and was a roulette master. We spun five times and got a lady drink 100% of the time. A lady drink, orange juice, is 200,000 dong a glass. That came to 1 million dong ㅜㅜ I went in thinking lightly and stayed exactly two hours, but got charged three sessions + one friend's session. It all came to over 4 million dong, and paying by card adds 4%. In the end, I went alone and drank a beer tower for two hours, and it came to over 200,000 KRW.
There were about 25 ladies, and just one was decent. No intention to revisit. This review is my personal experience, so take it as reference only.