The host: This was a last minute booking. Nikos responded promptly to our queries. He wasn't available for our check in time, but organized for someone to be there when we checked in.
The apartment: It was highly secure, clean and spacious with all of the amenities. Also had a cute kitchenette if you wanted to cook and strong air con. Because the apartment was on the ground floor, we did get some outside noise from the security door to the apartment building and from the club/bar across the street, so if you're a light sleeper this may bother you - ear plugs may help.
The location: Very central, within walking distance to the main sights like the Acropolis and the Acropolis museum and the Acropolis metro station was also a few minutes walk away. I highly recommend you to try out O Gyros Pou Gyrevis nearby for their chicken gyros, cheap & delicious, just opposite to the entrance to Acropolis station and Acropolis museum.