Cheap. Large Portions. A large variety of greek cuisine choices on the menu. Most meals come with whichever entree you select (i.e. souvlaki, gyro, etc) plus a hearty greek salad, and choice of fries, rice or potatoes.
Service is pretty quick, they want to get people in and out to keep the place flowing. Be prepared to wait a couple extra minutes for souvlaki's as they cook them as ordered - well worth the wait.
Another bonus - open late on weekends for those wanting an after bar/club snack. Can't verify the quality of grub at this hour.