I used to be a regular at Taverna Greka when I worked next door, so it was the perfect place for my girlfriend and me to catch up. It turned out to be the perfect night to be there. On an ordinary night, it has a fantastic view of the river and the bridge, but on the night that we were there, it was the super moon day. It was a busy night, but the host (owner) was nice enough to squeeze us in window side without a reservation.
We dined as the moon impressed us. The food was quite decent and the retsina was nice and chilled. There was even a belly dancer to entertain us (as if the moon wasn't enough).
I was there with a friend, but this could be a nice place for an intimate evening.