There's no shortage of places to get your falafel and shawarma fix along Bloor between Bathurst and Spadina. As any self-respecting U of T student will tell you, Sarah's falafels are among the best along this strip of Bloor. When compared to the broader spectrum of Toronto falafels, however, they're no more than average.
Falafel balls are okay considering they're not made fresh, quantity and variety of toppings is pretty good, and the hot sauce is tasty. The space is nice for a falafel joint and there's a good number of seats for eating in.
Overall a decent falafel if you're in the neighbourhood, but not worth going out of your way.