Kalliopi was brilliant. We were in Athens in April and booked a tour of the acropolis with her. She was extemely well versed in the history of the place and could answer all my questions (I am a history buff and I had a lot of questions for her!). She spent a good amount of time with us and even though we overran the time we had booked, she wasnt impatient or trying to hurry us along.
She communicated well while arranging the tour and even afterward helped us with recommendations while we were in Athens.