We were initially very confused about how things work at this place. We ordered and they gave us food, but no one told us to go to the cashier and pay to get drink cups. But the place was very busy and the food very good, and the portions generous. By the way, if you need to use the restroom, you have to get a key, go outside, unlock a padlock on the (completely unmarked) door. But it was clean! If you like hole in the wall, this place is for you.