In that charming yet usually horribly overpriced area at the foot of the Acropolis Yiasemi is one of the exceptions: not cheap, but given the views and location there are few better value cafes in all Athens. Serves a good range of food alongside outstanding coffee (there is a huge selection) and the tables out on the stepped-street are as authentically Athens as they come. Service is smart from smiley friendly staff. Of all the cafes in the area, choose this one.