We stayed at Pygmalion's appartment in Athens for 2 days and I wish we stayed for a longer time. Everything was perfect. The appartment is lovely (the photos are great, but the reality is even better) and is situated in the nice area. The way to the center is just 10 min with the metro. Pygmalion himself is a great host, he was very helpful and showed us around all around the place and gave some useful tips.
I highly recommend the appartment for everybody, searching for a place to stay in Athens.