Eleni's place is on a quiet street in an amazing location. It's a 5 - 10 min walk to the acropolis. Area is safe with many excellent restaurant options. Two worth mentioning are Sfika (authentic greek food, good prices, small and cozy place) and Vanilla Bistro (we went here twice - once for breakfast and once for drinks at night - we would have gone again if we had more time). Eleni had snacks and Ouzo waiting to welcome us to Athens. It was very nice and fun to try a local drink. If needed there are a couple of luggage storage places with a block or two, one of which runs 24 hours.