I think one of the essence of a good plate of fried kway teow is definitely the wok hei. And the owner of Hill Street Fried Kway Teow has definitely done it well because you can taste the smoke flavour of the noodles clearly. Here's a photo of fried kway teow. Read more: http://www.misstamchiak.com/hill-street-fried-kway-teow-bedok-south-market-and-food-centre-is-this-your-favourite/