I was going to Zorba's to have gyros until I explored this place, and I'm regretful about the time which I wasted in Zorba's.
Niro's Gyros (on University Ave.) is a great place to have gyros. Fast and delicious!!! Also cheap. You pay less than 8$ for a value meal. Also, they have a deal when you get 2 gyro sandwiches, you can get 1 free!!!
Only disadvantage of the place is that they have no indoor area, because they work like a take-away.
Anyhow, this is the best gyros place in C-U area.