This one in Shanghai is very famous.
http://shop33009136.taobao.com/p/rd0...51207.4.uPDupb
On this link it shows 3 locations for the shop in Shanghai. You can find a friend or a Taxi to get you there.
The owner for this "Choice Toy", Mr Wu, from I read in Chinese forums, he is like a "big boss" figure controlling lots of Chinese transformer businesses.
For example people blames him for making the MP13 Soundwave's price went up a lot 2 years ago.
Don't worry, his store is also famous for quality goods and good reputation. His stuff might be a little expense than others, but u will have good services, like exchange, inspection etc. At least that's what I read.