The apartment is really beautifully designed and had everything we needed for our 5 days stay. It's on the -1 level which is very convenient since it's in the shade of the sun most of the day and doesn't heat up so much as the rest of the city. In the morning, there is sun for about 2 hours on the little terrace.
We enjoyed the area a lot. There is a street around the corner with lots of restaurants, cafés and bars where mainly people from Athens went in the evening to get food end drinks (in May). The people impressed us with their friendliness and the restaurants are so nicely designed and have great vibes as well as great food for any taste.
The Akropolis as well as the main tourist area Plaka can be reached by foot easily and also taxi is quite cheap (about 3 Euros). We preferred the area of this aribnb apartment though, since it is nice and authentic.