The main advantage of these appartaments is that it is setteled in the centre of the city so everything is close to you - from Acropolis to supermarket. Second advantage is that appartaments have everithing need - wireless internet connection, TV, kitchen tools, soap and so on. And of course, the staff was excellent, answer quickly and informative. Also they shared a couple of useful tips about where to go in Athens
If I ever go in Athens again, I will definitely use their services.