My wife and I stayed here for four days during our first trip to Athens. It was, in short, amazing. The view is better than the pictures convey and the apartment itself is stylish, contains all the amenities you'll require, and contained many interesting items. The location could not be more perfect.
Yiannis was a superb host that was very quick to respond to our enquiries and he gave us great recommendations for food in the area. If you are going to Athens, this is the place you want to stay.