I spent ast summer in Greece, and absolutely fell in love with their food. I was really hesitant to find a restaurant back in Phoenix that would serve anything even remotely close to the awesomeness of the country.
Then I found GreekTown. VERY authentic. delicious food. Everyone who I have introduced to it absolutely loves it.
Don't expect anything even close to places like My Big Fat Greek Restaurant ( Thankfully... that place is AWFUL).
It's really a fantastic local restaurant, and the owner is definitely eccentric, but a very nice guy!