Eleni's place is in a perfect location, literally two minutes away from a plaza with tons of restaurants and shops. There's also a coffee shop, Salt or Sugar, nearby that I went to almost every morning. Everything you could want to do in Athens is within a 10-15 minute walk as well: All of Plaka, the Acropolis, the Agora, the Acropolis Museum, Psyri, etc. If I did have to use public transit, the bus and metro were very close by. Even with all of this, I found Eleni's place to be very quiet. Sure, there's some noise from people walking by or the occasional truck, but you're literally in the center of Athens, so this is no different from any other major city.
The apartment itself was clean and had plenty of stay for a week-long solo visit. I was able to work remotely without issue, cook meals when I wanted, and do laundry. The AC in the apartment is exceptional and made my days/nights much more comfortable when the heat was close to 100F. Check-in and checkout were both seamless as well and Eleni was quick to respond if I ever needed anything.
Thanks for everything, Eleni!