We had travel issues with the Air Traffic Controller strike, and Michael was super flexible allowing us to move our check-in date without any hastles or fees. Communication was a breeze and he was very responsive, often times in just a few minutes but never more than an hour to help answer questions.
The place was just as described and I would say it was a very good value for what it cost. The neighborhood was very busy with lots of street noise and traffic. This was our least favorite part of visiting Athens, but I guess that's the burden you must bear if you want to be within walking distance of all of the great downtown sites, restaurants and shopping.
Overall great place, great host, we even extended our stay for a couple of extra days.