Great location - you can walk to most of the main attractions in Athens. Fantastic view of the Parthenon from your living room! Large living space, two bathrooms, free Netflix, fast internet - this is a good place to stay for 2-4 people and could even fit more.
The only downside was the nightclub somewhere nearby, on Friday and Saturday music could be heard in bedrooms. Not very loud, but could bother someone if one has sensitive sleep.
Otherwise a very good place to stay and I definitely recommend it.