That a company with the brand-recognition, prestige, and (presumably) budget of Hong Kong's esteemed posh supermarket, City Super, should have opted to use DIY-online-store-building platform, Shopify for their e-commerce website, surprised me - I'll be honest.
I have nothing against Shopify. Awon Golding's beautiful millinery website uses Shopify. Plenty of perfectly nice-looking e-commerce websites use Shopify. But Shopify tends to be what you use when you're testing out a new product (or a new market). It allows you to get your products up for sale fairly rapidly, and with minimal set-up costs. In return for this you pay some punchy ongoing and transaction costs, and your wings are somewhat clipped in terms of the features your website can include.