I stayed at Konstantinos apartment for a week with my fiancé and we had a very pleasant stay.
Very clean apartment with good facilities, large couch and large bed. Fast WiFi. Kirchen had all necessities. Two heating/cooking air conditioners in the apartment. Refreshments and fruits in the fridge at arrival.
Bath tub was small and shower head a bit too low for me, but I am 193 cm.
I somehow managed to break the shower faucet the first morning, but Konstantinos made sure to have a new one installed within a couple of hours. Very service-minded of him.