There have been many Lanzhou style noodle restaurants popping up over the GTA in the past while. Magic Noodle has been here for a few years and is open for 24 hours, with a decent sized sitting space. I have been here many times, trying different items such as the magic lamb, the triple b, and recently the pot belly.
For all of these, the main weakness is the portion size of the meat and the soup. Each dish gives you a few pieces of lamb or beef, with the pot belly being significantly better but still not above average. The stock that they use lacks flavour from the meat and tends to be a bit too salty, and the chili oil isn't spicy enough.
That being said, the hand pulled noodles are still very great as well as the daoxiaomian, which I prefer because there tends to be more noodles in each bowl. I have not found any decent replacement as of yet, which I will update you on in the future. If you are around this area Magic Noodle is worth trying out.