This is a great place to stay! The location is perfect- you can actually walk to the Acropolis. But the neighborhood feels truly Greek- not like a tourist area.
Definitely walk to the Acropolis one of your first days just to get oriented. It takes about 15 minutes strolling (Athens is hot in summer) through a stark but beautiful hill.
From the apartment you can access within a few blocks bakeries, markets, coffee shops, and eateries.
The apartment is lovely-- well appointed and comfortable. The deck is the best, and it's great to spend lots of time there.
But by far the best quality is the graciousness of the hosts- Spiros and Johanna. There are great maps, travel brochures, etc in the apt that they are very willing to review with you. Every question we had was promptly answered. Plus, they're charming and a lot of fun. Highly recommended.