We had a great experience staying in this really cool apartments right beside the trendy Plaka area.
Liberty was the perfect host for us, giving great advice on places to eat and areas to visit. She brought us for a coffee before we checked in as we arrived very early in the morning,which was really nice of her.
The apartment is clean and comfortable with a coffee maker, microwave, good sound system for playing Mad Radio (Athens music station) before hitting the night out. Athens by night is the best way to explore the city in my opinion as it is extremely hot during the day. The place really comes alive at night.
If you need a place to stay in a perfect location then I highly recommend staying here. Lots of cafes, bakeries, bars and restaurants (try Avocado around the corner) all around you.
Liberty is a very nice host and I would staying here during your Athens trip.