You’ll need to sign up for a membership card to shop there, so make sure to bring your passport (or passport copy) to join their club.
In addition, catching a taxi there is pretty easy; however, trying to find one to head back home is very difficult as the area is less populated and out of the way. You may have to ask the front desk to assist you in calling a taxi when you're ready to leave.
Metro Supermarket in Kunshan Address:
No.200 Huangpujiang North Rd. Zhoushi Kunshan