Thing I like most about Yassou is the lemon herb marinade/sauce that they use on several of their items. They do this well.
Generally speaking, I'm not going to go out of my way to eat here. I think there are better Greek/Mediterranean places at about the same price-point...and most of them are sit down places with more comfortable seating.
The gyros are solid here...they do their chicken gyros better than average...nothing else telling my stomach to tell my brain to come back here though.
I do love their black and white checkerboard tiles :)