Christos' place is absolutely gorgeous - it is very modern, clean and has all the amenities you will need for a very comfortable stay in Athens! One thing you might want to consider is location as I found the apartment to be around 30 minutes from the main city centre. Whilst I do enjoy the walk as you get to explore a very Athenian neighbourhood, it was a bit inconvenient when I was pressed for time or sometimes a bit draining in the heat. That being said, I had a lovely stay at Christos' apartment; particularly as there are fantastic restaurants and cafes in the neighbourhood!