Ding Tai Fung is located in a very busy mall in Markham, finding parking is a hassle so if you don't mind the extra walk, I would suggest parking further near the old Cineplex and walking over. We arrived around 5:30 pm on a Saturday and this place already had a line going almost out the door. We waited around 20 minutes for a table, so the turnover is considered quick. Now onto the food:
For two people we ordered: pork soup buns (XLB), Shanghai noodles with cabbage and pork, veggies (gai lan) with pork and the beef pancakes. I would say the only redeeming factors were the XLBs and the beef pancake, those were authentic and yummy. However the noodles and the veggies with pork were pricey for the amount of food you got and it was quite oily. I feel like I could have cooked the noodles and veggies at home myself and it would have tasted the same. For the 4 dishes, we paid about $50 after tax and tip.
Service was typical of what you would get at Chinese restaurants, speedy but not over the top. Would I return in the future? Yes, but I would probably order more of their dim sum type foods instead of noodles and stir fry dishes.