This is hands down the best place you can book in Athens. It has a rooftop terrace with a great view to the Acropolis and everything there is to see in old Athens is in walking distance. Lots of taverns, cafes and restaurants nearby as well.
As for the hosts, Sakis and Spyros are amazing! Very hospitable and friendly. They have accomodated an early checkin for us, left us a bottle of wine and fresh garden olives and even gave us a tour of the neighbourhood, including local tips.
Would definitely come back again (and probably will)!