Tendou is typically known for their naturally flavoured Yame Matcha from Hoshino Tea Gardens in Japan (also being the first business outside of Japan to import their matcha). Hence, their naturally-rich matcha flavour in their soft-serve ice cream. Make sure you get the swirl with black sesame to balance out the flavours.
My personal favourite is their Tofu Cheesecake which has a strong natural taste of tofu - something difficult to achieve, and often imitated with the addition of soy milk. Their philosophy is to bring out the natural flavours of the ingredients used (e.g., Matcha, Black Sesame, Hokkaido and Tofu) without overly sweetening their deliciously baked treats or soft serve ice cream.
Highly recommend this place for post-dinner desserts in Markham!