We stayed at Sokol’s at the beginning of October. The welcoming was extraordinarily- from the guys who welcomed us to the neighbors:) they made sure to explain us everything and make our stay even more beautiful. The apartment is excellent, and it was really big enough for the 4 of us. The look from the rooftop is breathtaking and you have a free gym inside the building- it’s really worth every penny that you pay.
On the left side from the apartment is a family restaurant called Telis - with the best Greek food :) around the place you can find a lot of small shops :)
The apartment is really great located- just a few steps from the apartment is the lively neighborhood Psiri and all the tourist attractions are within walking distance - we never used any public transportation.
They sent us every day a message to make sure everything is fine and to ask us if we need anything. We really felt so welcomed. I would definitely recommend Sokol for your stay in Athens :)