My fiancé and I went to try out Thai On Yonge. It's on the second floor so most people would probably dismiss it due to it's location. It used to be a Chinese dim sum restaurant.
The owners are definitely Thai and very friendly, which was a great sign that they serve authentic Thai food.
My fiancé and I ordered their street pad Thai (made with tamarind sauce and not ketchup!), and spicy beef salad. My street pad Thai came with a choice of coconut soup or hot and sour soup with spring rolls. I opted for the coconut soup and it was one of the best coconut soups I've had. The soup had a nice tang of lime, some slices of chicken breast and a couple mushrooms. The spring roll on the other hand was mediocre. The pad Thai was very good but I wished it was spicier, or else it would've been awesome. We realized after that there's spice levels on the menu, next time we'll tell them, but they ought to ask you when you're ordering.
My fiancé's spicy beef salad was quite tasty and fresh. He loved his plate of salad tho he missed the heat as well.
Overall, the decor of the place definitely needs an upgrade, but the service and food were very good so I can dismiss the decor. We will be back for sure!