Mag's place is a good place to stay while in Athens. It is small but fully private and very comfortable. I arrived in a well heated room (highly appreciated as it was a bit cold outside) and felt welcome from the beginning. The pictures describe this place very well but it actually felt more comfortable than the pictures suggested. The check-in was very easy and so was the check-out.
The only slightly negative points are basically outside of Mag's control and would be the limited amount of hot water for a shower and the ongoing construction at the ground level.
Overall I can just recommend this place and will book it again.