The apartment is located very well! Next to Syntagma place, lot of restaurant 2min walk, Acropolis 10min walk, 10min walk of Monastikari. It's the perfect place to discover Athens in few days. The inconvenient is normal for a place in the center of a town : the noise. There are 2 pubs with music next to the flat and a moto parking next to the window. It could be annoying for people who love sleeping in total silence. For us, it was bearable.
Emmanouela and her mom were super nice with us, very reactive, very good host!