Petralona is a really good neighborhood, we felt safe there. Also there are many nice restaurants and cafes around. We could walk to Acropolis in half an hour and it was a great location overall to get around, very central.
We felt really comfortable in the apartment, the appliances exceed our expectations (kitchen appliances, washing machine, iron and ironing board and others mentioned in the description of the apartment).
would like to stay there more, really recommend it :)
and many thanks to our host!