We arrived a bit early and as the previous guest left very early, Stella and Nikos allowed our early check in :) and also a bit of a later check out (thanks guys, this was very helpful for us).
Communication with this host was extremely easy and fast, they are very accomodating and helpful. The place is in a GREAT LOCATION. One of the prettiest neighborhoods in Athens (we wanted to stay longer) . We did not need any public transport to the main sights because it's all within walking distance (walking distance as expected in Europe).
A lot of places to eat nearby, we strongly reccommend you go to Ergon House, which is delicious and the price is similar to all the taberns nearby thar are not too tasty. We had a brunch and a dinner there and it was delish!
The airbnb can be reached by one bus directly from the airport that costs 6 euros one way (route X95) which is also a plus when you travel on a budget. Very recommended!! If you take this bus back to the airport, be sure to leave with plenty of time because it is always FULL.
Thanks for everything Stella and Nikos, we will be recommending your place to all our friends and family.