Harry's place was clean and convenient, close to the center. Harry arranged a taxi from the airport and to the ferry port and they were awesome.
This has nothing to do with Harry, but please be careful traveling in Athens on subway. I had my wallet picked from my front pocket on the subway. Keep your wallet in something than you can keep in the front of you.
I would definitely look for Harry's place again when traveling to Athens.
Enjoy Athens and be safe.