Iroha Mart at Plaza Singapura offers a wide range of authentic Japanese foods, snacks, and household items, praised for its variety and quality. Customers appreciate friendly staff and unique product selections, though some find prices higher compared to Japan and other local stores. Service quality varies, with some reports of rude staff and safety concerns within the store. Overall, it remains a popular destination for Japanese goods, balancing higher prices with authentic offerings and occasional exclusive items.