We really enjoyed our 2-night stay at Konstantinos apartment, we had a good communication with him right from the start, found the place without any problems thanks to his prompt directions and greatly apreciated his availability and suggestions. The location is pretty great, near the center, easily accessible by metro and bus, near the historical center, the Plaka district and many, many restaurants and bars. The apartment in itself has everything you might need, modern decoration, very clean. However we couldn't close the blinders of one of the windows, which greatly disturbed my sleep, because there is a lot of noise coming from the streets and a lot of light coming in to the bedroom directly, as well. If you are a heavy sleeper, though, that might not disturb you at all.