Rio was a great host and the apartment was great for the price! I traveled with my two friends and we had to come to Athens a day earlier than expected from the islands because of the ferry strike. The place we had already booked with Rio was not available a day earlier but he allowed us to stay in another place that was close by. It was great for us since the decision to come to Athens early happened last minute and we arrived in Athens pretty late that night. Even though our plans changed pretty fast at the last minute, Rio was very accommodating. He also gave us a tour of the neighborhood and gave us some useful information and was always available to answer questions.
The apartment is centrally located to all the ruins; we only took a taxi to get to his place from the port and to get to the airport. Otherwise, we walked to all of the ruins and spent a lot of time in the Plaka/shopping area of Athens. Although the apartment is in more of a residential area, there are many restaurants a couple minutes walking from the area and Plaka and other busy areas are only a 10-minute walk.
He and his wife also allowed us to keep our bags in their own apartment (which is right next door) after check-out time because we had a late afternoon flight.
The wifi was a little spotty/slow but that was not a big deal for us because we only used it at night since we spent most of our time outside of the air B&B. Also, coming from the US where the bathrooms are bigger, the shower was interesting to use because it made the entire bathroom wet but we learned this was pretty typical of Greek bathrooms (at least on our budget) from our stays in other locations. We quickly adjusted.
Overall, good for people looking for a quiet neighborhood but that is also in walking distance of restaurants, bars, ruins, etc.