Wow! In short, we loved it. What a great space! My wife wanted to live there. I wish we had seen it before we built our house, as there are a lot of nice design ideas. To come home from hiking around the Acropolis or museums and jump into the private pool in the afternoon or evening was such a pleasure. The views were amazing. The apartment was gorgeous, and exceeded expectations. Lots of little thoughtful touches. Emmanuela was prompt in her responses to any questions that we had, at all times. We had a few minor issues, that she promptly resolved.
Negatives (just so you are aware): There are undoubtably better and quieter locations in Athens, but although there was traffic noise it was never an issue for us. Walking to the Acropolis took 20+ minutes, but it was a pleasant walk, and we enjoyed it daily. The stairs in the apartment are steep and narrow, and I would not recommend this to someone unsteady on their feet. Although you can use the elevator between levels.
But despite these minor issues, we would certainly book this place again. I doubt we will ever find another place as nice. This may have ruined us. :-)