Costco operates in Australia as a premium membership warehouse club offering bulk buys and top brand products. It provides good value for families or individuals who buy in bulk and have storage space, with competitive prices especially on items like fuel, household essentials, electronics, and some exclusive or fresh products. Reviews from Australian customers suggest it is worth joining if one regularly purchases large quantities, uses the fuel benefits, or shops for specific items that offer notable savings compared to other supermarkets. However, for smaller households or infrequent shoppers, the membership might not always be cost-effective. Costco in Australia also has an online presence and a mobile app facilitating convenient shopping and access to daily fuel prices.