I've been here 3 times and I never fail to get lost and dizzy walking inside. There was once I couldn't get out of the maze! They quote more than double the price for tourists/foreigners here so please bargain! Once you turn your back, the price goes down by 10 yuan. Each step you make out of the shop, the seller starts calling for 5 yuan less. Continue walking, make a few rounds in the maze and go back to the stall again. You'll be amazed at how low the price can get. I have never felt so satisfied shopping anywhere else other than in this place.