Lunch in Athens and Piraeus

We will be in Athens ( Piraeus ) for 2 days in September.

We are thinking of taking the sight seeing bus for 2 days, and would like recommendations of a couple of nice restaurants.

One in Athens, and one in Piraeus.

Are there any nice areas in Piraeus that the bus passes through ?

Check trip advisor for reviews. Also what kind of restaurant? Romantic, family, sea food, scenic views, family,budget friendly, or the skys the limit etc? Tons of places so it depends on what you want.

Would like Greek food, with a scenic view if possible.

I have been checking on trip advisor.

There seems to be a marina not to far from the port.

Does anyone know if this is a nice place ?