We (family of 3) spent a week in Athens and stayed at this Upstreet hosted apartment on 1st floor. Apartment was clean and had all the amenities that made our stay really comfortable. Upstreet team maintained excellent communication with us before and throughout the stay. All my questions/requests were answered quickly.
Apartment is located very close to Acropolis and is a 5 minute walk from both West (recommended) and South entrance to Acropolis. Everything was walkable from the apartment and made it really easy for us to explore Acropolis and Plaka. It's located 5 minute walk from all tourist areas and is in a quiet neighborhood. There are two grocery stores nearby and I would recommend going to "Ok market". There is a souvenir shop right under the apartment building called "Hydra Gallery". I would suggest not buying anything from them as they markup their price really high and then offer 60% discount. Apartment has a view of Philopappos Monument and a partial view of the Acropolis.
Apartment was just as described in the listing. Note that they did not have cooking oil and had very limited quantity of other kitchen condiments so if you plan on doing any cooking then you may want to go to the nearby grocery market to stock up.
I would stay here again if I visited Athens and would highly recommend it.