Katerina is an excellent airbnb hostess - when our ferry to Kea was cancelled - she helped to sort out our new arrival time and welcome easily. When we came back to Athens - she went out of her way to come and meet us and share a glass of wine and a chat. Her communication throughout the whole booking and visiting Kea was superb.
The actual Kea property has possibly the best balcony for a view over the Chora - making breakfasts on the balcony a joy and sitting having an evening drink watching the sunset was pretty good too ( it was possibly a little too warm during our visit in July). The internal accommodation is very traditional as you would expect in a 300 year old cottage - giving us a new experience in Greek living. The internal open staircases are "demanding" but seem pretty safe - do note that the house is quite a pull up from the town square after your evening meal at one of the great restaurants, so go easy on the wine !!
If we return to Kea - then we would certainly go back to Katerinas house - small as it is -- it did suit this couple.