This place is so close to everything you want to see in Athens. You can literally walk to Acropolis, Plaka, flea market, the stadium, the parliament building, and more! There’s tons of places nearby to eat and drink any time of the day. If you are staying long, it might be difficult since they do not have a washer & dryer but it was ok for us. Things were old and worn so it might bother you to use their cups, towels and fabric couch, but they seemed clean enough to us. We arrived late and the old lock box took forever to open (we have used other lock boxes without trouble). Once we were got inside the building, there was no light on the stairs to the 3rd floor so it was dark, scary and dangerous (you can fall, you know). But overall, we enjoyed staying here because of the location!!
One more thing, if you are debating whether to rent a car or not like us, please don’t. The parking is an absolute nightmare- I wish it was as easy as Dina said. I think it must be easier for locals but not for tourists like us. So we ended up spending 130 euros just for parking fee near this house.