I have been coming here my whole life and it is one of those places that you will always remember.  It has changed very little in the last 30 years except I think it has had a few different owners.  Nick's is a classic Greek diner with nicer dinner options (steak, fish fry, a few Greek dishes, etc).  The food is always solid and straight down the middle.  I always have the basics (burger or a turkey sandwich) and they are totally fine.  Nick's feels like you stepped back into the 50s and I appreciate that the owners decided to keep alive what is one of the coolest interiors in the US.