I pop into Coles Sydney CBD for items every once in awhile for things I either can't find in my local Coles or for things I want to buy for the cheapest price like a packet of chips. The store is underground and one level so it makes it easier to find everything, and there is a bottle store inside as well for added convenience. There is a large amount of self-serve check outs so while the lines can be long the wait to purchase your items is very short. The only drawback is that there is one entrance in and out, and it is through escalators that barely fit two people. When you're in a rush and someone is standing around it is very frustrating.