This is one of 3 or 4 corner shops within 30 seconds walk of Shadwell Station. They all have a slightly different focus and Express Mart(for me) is one of the better options with a good selection of everything you would expect from a corner shop — a(relatively random) selection of vegetables, a few things including milk in a fridge and an array of dry goods. This together with personable staff makes it a-ok for me.