Staying at Kal's was a very good experience. Me and my friend stayed here for the week and it is exactly as he describes in the description . The house is clean and in a very good location. It's a 10 -15 minute walk to Acropolis and even less time to plaka where you will find varieties of food restaurants (I recommend yard, gods restaurant and smile) Syntagma is also not a far walk from here.
Kal was very quick to respond to all of my queries and even dropped off some fresh sheets and towels after we had left for the day after on day 3. He also greeted us with a warm welcome and never made me feel like we were bothering him if I had questions lol. Thanks for everything Kal. I know where to stay if I ever come to Athens again !