Maria is a stellar host—she’s thoughtful, communicative, kind, and helpful, and at the same time she manages to not be overbearing.
A few details: when rain appeared in the forecast she lent us two umbrellas; her local recommendations on where to eat (both when I asked and the ones she wrote in her guidebook) were tasty and affordable; she checked in throughout our stay.
The apartment itself is accurate to the photos and very nice, especially when you consider the price. The beds were comfortable (very firm though), everything was clean, great location—Exarchia is a great neighborhood if you want to live like a local—all that. The balcony is really amazing as well.
I’d be more than happy to stay again!