Konstantinos' place is awesome. The location is amazing, very central, a supermarket across the square, coffee shops, restaurants, bars, pharmacies, ATM, hair salons, nail salons, everything one may need is just a few steps away. The place is spacious, the beds comfortable, the kitchen fully stocked, hot water all the time, and the balcony is the cherry on the cake. One could sit there and watch people go by and relax. I would absolutely stay again in my next visit to Athens.