Michail's flat is very well located and clean, equipped with all the adequated services. I will recomend to stay at his flat for your stay in Athens.
Even if Michail was very reactive to the messages, we regretted the lack of information when we arrived, nobody was there to welcome us and we had to call him for the code (all foreign phones does not have necessarily phone coverage) and we had to text him for more of the useful infos (Wifi and check-out).
This place will only need a little memo with all the useful informations when entering the flat to be perfect! :)