Our trip to Athens which was magical in itself was only improved by our stay at Anthi and Haris' apartment. They truly did something special with the apartment by blending all of the necessary amenities that you would need with a lot of stylish touches that really make the place stand out and give it a personal human (artistic if you want) touch.
The neighbor is also really good. You will not be disturbed by crowds of tourists like you might find in others like Monastiraki or Plaka, nor you will have noise coming from the local bars like you might get in Psyri. It's inhabitated by locals but is also close to all of the central touristic spots so that you won't need to use public transport to get to the center.
They were also really responsive to our questions both before and during the reservation so, if you have any doubt about staying at their place for your time in Athens, you shouldn't.