We enjoyed our time in Tris Ekklissies very much. Beautiful surroundings, nice fully equiped appartment, extreme helpful, responsive and kind host, very friendly mother in law who lives next door who welcomed us with some groceries and a Greek meal in the oven and came to say 'Kalimera' (goodmorning) every morning when we sat on the balcony.
The road from Charakas to Tris Ekklisies is stunning with at the end 19 hairpins and beautiful views. We had some trouble finding the road toward Tris Ekklissies at Charakas (our navigation got confused and we too :-), but as soon as you are on the right track, it is easy.
We definitely recommend a stay here!