We had a great stay at Konstantinos’s apartment. My family of 5 stayed there for 5 days. The check in was easy, there is an elevator which is convenient as the apartment is on the 4th floor. The location is perfect both for the touristy sights in the Plaka area and for access to other parts of the town if you want to see a bit of the local life. The apartment inside is very modern and clean, the temperature for the air conditioning can be controlled for each room separately. I gave this place a 5 star rating, highly recommend it.