We were four ladies who stayed in this apartment for a few days and we were all very happy with our choice! It is really a nice and comfortable place as shown in the pictures, has all the necessities in it. The location is also great - not the immediate centre but just 10-15 min walking through the beautiful National garden.
Yannis was very helpful and responsive from the beginning, replied to all of my questions very quickly. We didn't meet him in Athens but his assistant George welcomed us in the apartment. They also organized a taxi pick up for us to and from the airport. We had everything we needed for our stay and would definitely stay there again when we visit Athens!