For my money, this place has the best chicken shawarma on the strip of Bloor, and the only one I really like to return to (other than Ghazale or Laila to try more of their sides).
There are three main reasons why I prefer Pita Q over the other shawarma/falafel places: Their chicken is the best spiced, their garlic sauce is the tastiest, and their pickled turnips seem the most fresh and crisp. The rice and salad and stuff is nothing special, but who cares? It's rice and salad and stuff; not the main event.
The biggest drawback here is the size of the platter meal. I think it's slightly cheaper than other places ($7.49?) but you only get a rectangle sized take-out container. It's more than enough for a meal, but not enough for two, which you'll usually get from the others.