Amazing! Amazing space, amazing host and amazing location. If you are looking for a clean, comfortable and just all around great place to stay during your time in Athens--this is absolutely it. The host (Kostas) was so incredibly kind and helpful. Upon arrival he suggested excellent places for breakfast, lunch and dinner (to avoid tourist traps) and had a map printed out ready for us to take with us with the suggestions. The space itself is very modern and clean--of extra mention is the bed which was so, so comfortable with nice clean linens. The location was also very convenient. Although the place is quiet and feels tucked away (no issues with noise), we were right in the heart of everything--walking distance close to the metro, flea market, Acropolis and all the cafes/restaurants/shops you could possibly imagine.
I really can't say enough good things. We will definitely be re-booking here on our next trip to Athens.