I guess like any restaurant you have to order the right things. At a ramen restaurant it is all about the broth, really is.... If you go to Kenzo you should order the Black Tonkotsu. It is probably one of the best in TO. I have tried their Shoyu ramen and the broth taste only of soya sauce - really have not found a good Shoyu ramen in TO - if you know of good one let me know.
It's all about the Tonkotsu at Kenzo - the accompanying pork char su is also very good.