It was my first experience with airbnb, me and my and girlfriend went to Athens for 3 days, Serafeim was very helpful from showing directions to helping with anything we need in and outside the house. The house was very clean and Serafeim is a very flexible guy, we arrived 2 hours before check-in and he was ready for us, we asked for a covid test spot and he gave us 2, i even asked the guy for a place to buy sunglasses and he gifted me 2 pairs, Serafeim if you're reading this, thank you for the glasses and everything else!
I recommend the place 10/10, very strategic, 3 min from the bus station and 7 minutes from the train station and both will take you to the City Center!
To reach the airport, it's a 3 min walk to a bus stop and than take the bus X93, just be careful to ask first if the bus is going to the airport or coming from it!