Alexi's Hideaway is a wonderful 5th floor, 3 bedroom apartment in the middle of Athens. It's 15 minutes from the Acropolis, it's in the middle of restaurants, stores, and 5 minutes from the Syntagma Metro.
Alexi was very communicative in all of the advance work. I had one problem reaching him once we arrived, because we couldn't find the information on the wifi-passwords. In fairness, after I checked my e-mails I found that he had sent it to me long before we arrived, so that's on us. But I e-mailed him through Air B'n'B messaging but didn't hear back during our three days.
Nonetheless, this is a terrific apartment and I would highly recommend it to anyone looking to visit and site-see in Athens.