The apartment is in a very convenient location only 5 minutes from the Monastiraki station, which is really nice - especially when coming in from the Athens Airport (same line). It is beautifully decorated and has a fantastic kitchen that is well stocked with everything you would need if you want to cook. Yiannis brought some beer and snacks, which was a very nice surprise.
We had the opportunity to have lunch at his family's restaurant near the National Archaeological Museum. They're from Crete and serve Cretian food with a 10% discount since we stayed at their AirBNB. Delicious.
At lunch, Yiannis asked if we were happy with our stay and wanted to make sure everything was OK (it was great). He mentioned that he was considering a window tinting or blackout shades since some previous guests mentioned that it was bright. We didn't find it too bright and rather enjoyed the sunlight in the morning to ease into the day. The apartment is located in an area that is popular for eating and drinking with the 20 and 30 something crowd, but we didn't have trouble with noise. You may want earplugs if you are sensitive to that. But you really can't beat the location. It's in a very convenient location to some great food and can walk to places like the Acropolis. The Agora is practically outside your doorstep.
Great place to stay in Athens, great value, highly recommended!