Nia's place was excellent! Our favorite part was sitting on the balcony and taking in the incredible view of the city. It was a really large, comfortable space with everything you would need (including a big TV!). Nia had some really thoughtful touches.
It is about a 20 minute walk to the touristy, central part of Athens, but only an 8 minute walk to a bus station with buses that take you outside of Athens (we took a bus from here to the Temple of Poseidon in Sounion). Also, from the balcony you can see the National Archeological Museum, which is a big tourist attraction.
At first, we didn't feel like the neighborhood was that great, however after spending more time there, we found lots of quirky looking restaurants and bars and learned some interesting history and cultural facts about the neighborhood. We never felt unsafe though.
Nia was very responsive and communicative. She met us in person to show us the apartment and gave us some great tips for things to see and how to get to them. We really appreciated that and her recommendations were great.
But most importantly, it was really nice to come back to a comfortable and stylish space after long days of sightseeing. I would 100% recommend Nia's place if you are staying in Athens