We stayed in Marina's place for three nights. The host's employee communicated well and waited for us even though our ferry was late and answered all of our questions which was great. You can't beat the location as far as walkability (even though it is a bit noisy at night). Many sites within the city and walking to dinner was super close and uber is super cheap in Athens as well. The view of the Acropolis was great.
What fell a little short for us was the bathroom. The picture showed on here is not it's current state. We found paint peeling of the walls and the shower head cord didn't reach far enough to actually hang up. So trying to hold a shower head with one hand and shave your legs with the other is less than ideal. Also, even though we switched on the water heater in the recommended time before the shower and even longer I never got past 5-7 minutes in the shower with hot water. All in all we had a good time in Athens even though the bathroom left a bit to be desired.