I've been going to Reyan since they were at their old location, and over time, their shawarmas have become smaller as their price went up. They have a deal for 2 shawarmas for 7.99 which is decent, but they put as little condiments on it as possible. When I asked for more garlic sauce and pickled turnips, the guy said I'll need to pay full price for the shawarma if I wanted a bit more toppings on it. I didn't want to make a big deal out of it at the time, but after that incident I've stopped going to Reyans and started going to the shawarma place right across it (in the plaza the other side of dundas).
Reyan still makes a decent shawarma, but considering that it's so easily found, they should remain more competitive; they aren't the only shawarma store in Mississauga. Shrinking the size and reducing the quality of shawarmas while raising the price of it doesn't help.
The shawarma place across the street is a bit more expensive than Reyans but literally twice the size of Reyans. If you want a real quality shawarma check out Aladin's nearby, they're MUCH better than Reyans