Leonidas was a very responsive host for our apartment. Leading up to the stay he was in contact with us, verifying how we were arriving and the time. He even spoke to our taxi driver over the phone to give him directions.
The apartment was small, but fit our needs just fine. We were only there to sleep between seeing the sites. I do admit the beds were very stiff, but after site seeing all day we all slept fine.
Be aware the area is full of grafitti, but we discovered most of Athens is that way - disappointing.
However, the apartment location was a 15 minute walk to the Acropolis- with plenty of restaurants along the way. Once you arrive - you won't need a car (especially if you do one of the hop on/hop off bus tours of the sites).
I would recommend this apartment for certain. It was exactly as described with a responsible person taking care of you. Thank you also for arranging the car service back to the airport - he was an enjoyable driver with great English language capability!